Threaded Bars/Rods :
                        Threaded Bars/Rods Exporter
                        Contact Us For High Quality  Threaded Bars/Rods
                        At JB Steel we pride ourselves on always putting the customer first. We help make stainless solutions simple for you by ensuring satisfaction through high delivery performance, flexibility and extensive service.  
                        We are pleased to introduce ourselves as  one of the leading Importers, Exporters,  Suppliers  & Stockists of Threaded Bars/Rods.  
                        We would appreciate to get your esteemed enquires and look forward to the pleasure receiving your valuable response. 
                         Studs/Bolts/Nuts  
                          THREADED ROD / STUD / BOLT / NUT / WASHER 
                          ASME SA 193 Grade B7, Grade B7M, Grade B16 
                          ASTM A 193 Grade B7, Grade B7M, Grade B16 
                          ASME SA 320 Grade L7, Grade L7M, Grade L43 
                          ASTM A 320 Grade L7, Grade L7M, Grade L43 
                          ASME SA 194 Grade 2H, Grade 2HM, Grade 3, Grade 4, Grade 7, Grade 7M, Grade 16 
                          ASTM A 194 Grade 2H, 2HM, 3, 4, 7, 7M, 16 
                          ASME SA 193 Grade B8, Grade B8M, Grade B8 Class 2, Grade B8M Class 2 
                          ASTM A 193 Grade B8, B6M, B8 Class 2, B8M Class 2 
                          ASME SA 320 Grade B8, Grade B8M, Grade B8 Class 2, Grade B8M Class 2 
                          ASTM A 320 Grade B8, B8M, B8 Class 2, B8M Class 2 
                          ASME SA 307 Grade A, B, C Carbon Steel Bolt and Stud 60000 PSI Tensile Strength 
                          ASTM A 307 Grade A, B, C Carbon Steel Bolt and Stud 60,000 PSI Tensile Strength 
                          ASME SA 194 Grade 8, Grade 8M, Grade 8F, Grade 8A, Grade 8C, Grade 6, Grade 310 
                          ASTM A 194 Grade 8, 8M, 8F, 8A, 8C, 6, 310 
                          Stainless Steel Carbide Solution Treated & Strain Hardened Threaded Bar, Rod, Stud 
                          Roll Threaded Bars, Roll Threaded Rods, Roll Threaded Studs 
                          B-8 Class-1 Stainless Steel AISI 304 / 304L Carbide Solution Treated 
                          B-8 Class-2 Stainless Steel AISI 304 / 304L Carbide Solution Treated, Strain Hardened 
                          B-8M Class-1 Stainless Steel AISI 316 / 316L Carbide Solution Treated 
                          B-8M Class-2 Stainless Steel AISI 316 / 316L Carbide Solution Treated, Strain Hardened 
                          B-8C Stainless Steel AISI 347 / 347H Carbide Solution Treated, Strain Hardened 
                          B-8T Stainless Steel AISI 321 / 321H Carbide Solution Treated, Strain Hardened 
                          B-8P Stainless Steel AISI 305 Carbide Solution Treated, Strain Hardened 
                          Threaded Rod / Threaded Bar DIN 975, Stud Bolt DIN 976 
                          Hexagon Bolt DIN 601, DIN 931, DIN 933, Hexagon Nut DIN 555, DIN 934 
                          Plain Washer DIN 125, Stud Metal End DIN 938, DIN 939, DIN 940 
                          Property Class : 4.8, 5.6, 5.8, 8.8, 10.9, 12.9 
                          Coating : Bright Zinc Plated, Hot Dip Galvanised, Phosphatided, Nickel Plated 
                          Material : 22CrMo4, 24CrMo4, 25CrMo4, 26CrMo4, 34CrMo4, 42CrMo4, 34CrNiMo6, 41CrNiMo6 
                          Material : AISI 4130, SAE 4130, AISI 4140, SAE 4140, AISI 4145, SAE 4145, AISI 4340, SAE 4340 
                          Material : EN 8, EN 9, EN 19, EN 24 Condition : Normalised, Tempered, Quenched & Tempered  
                         
                        HEAT-TREATED ALLOY STUDS, BOLTS THREADED BARS & RODS
                        
                          Chemical Composition 
                          
                            
                              
                                | Elements | 
                                A354 Grades BC, BD | 
                                A193 Grade B7 | 
                               
                              
                                | **See Note Below | 
                                Chromium-Molybdenum | 
                               
                              
                                | Range percent | 
                                Check variation 
                                  over percent | 
                                Range percent | 
                                Check variation 
                                  over or under percent | 
                               
                              
                                | Carbon... | 
                                -- | 
                                -- | 
                                *0.38-0.48 | 
                                0.02 | 
                               
                              
                                | Manganese... | 
                                -- | 
                                -- | 
                                0.750-1.00 | 
                                0.04 | 
                               
                              
                                | Phosphorus, max... | 
                                0.04 | 
                                0.005 | 
                                0.04 | 
                                0.005 over | 
                               
                              
                                | Sulphur, max... | 
                                0.04 | 
                                0.005 | 
                                0.04 | 
                                0.005 over | 
                               
                              
                                | Silicon... | 
                                -- | 
                                -- | 
                                0.20-0.35 | 
                                0.02 | 
                               
                              
                                | Chromium... | 
                                -- | 
                                -- | 
                                0.80-1.10 | 
                                0.05 | 
                               
                              
                                | Molybdenum... | 
                                -- | 
                                -- | 
                                0.15-0.25 | 
                                0.02 | 
                               
                            
                           
                        
                        
                        
                          
                            
                              | Elements | 
                              A193 Grade B16 
                                Chromium-Molybdenum-Vanadium | 
                             
                            
                              | Range percent | 
                              Check variation 
                                over or under percent | 
                             
                            
                              | Carbon... | 
                              0.36-0.44 | 
                              0.02 | 
                             
                            
                              | Manganese... | 
                              0.45-0.70 | 
                              0.03 | 
                             
                            
                              | Phosphorus, max... | 
                              0.04 | 
                              0.005 over | 
                             
                            
                              | Sulphur, max... | 
                              0.04 | 
                              0.005 over | 
                             
                            
                              | Silicon... | 
                              0.20-0.35 | 
                              0.02 | 
                             
                            
                              | Chromium... | 
                              0.80-1.15 | 
                              0.05 | 
                             
                            
                              | Molybdenum... | 
                              0.50-0.65 | 
                              0.03 | 
                             
                            
                              | Vanadium... | 
                              0.25-0.35 | 
                              0.03 | 
                             
                          
                         
                        
                        
                          
                            
                              | Elements | 
                              A320 Grade L7 | 
                              A320 Grade L43 | 
                             
                            
                              Chromium-Molybdenum 
                                (AISI 4140, 4142, 4145) | 
                              Nickel-Chromium-Molybdenum 
                                (AISI 4340) | 
                             
                            
                              | Range percent | 
                              Check variation 
                                over percent | 
                              Range percent | 
                              Check variation 
                                over or under percent | 
                             
                            
                              | Carbon... | 
                              *0.38-0.48 | 
                              0.02 | 
                              0.38-0.148 | 
                              0.02 | 
                             
                            
                              | Manganese... | 
                              0.75-1.00 | 
                              0.04 | 
                              0.60-0.85 | 
                              0.03 | 
                             
                            
                              | Phosphorus, max... | 
                              0.04 | 
                              0.005 over | 
                              0.04 | 
                              0.005 over | 
                             
                            
                              | Sulphur, max... | 
                              0.04 | 
                              0.005 over | 
                              0.04 | 
                              0.005 over | 
                             
                            
                              | Silicon... | 
                              0.20-0.35 | 
                              0.02 | 
                              0.20-0.35 | 
                              0.02 | 
                             
                            
                              | Nickel... | 
                              -- | 
                              -- | 
                              1.65-2.00 | 
                              0.05 | 
                             
                            
                              | Chromium... | 
                              0.80-1.10 | 
                              0.05 | 
                              0.70-1.90 | 
                              0.03 | 
                             
                            
                              | Molybdenum... | 
                              0.15-0.25 | 
                              0.02 | 
                              0.20-0.30 | 
                              0.02 | 
                             
                          
                         
                        
                        *For bar sizes over 3-1/2 in. to 4 in., inclusive, the carbon content may be 0.50 pct. max. 
                        ** Any alloy steel capable of meeting the tensile requirements of Specification A354 may be used. 
                        Tensile Requirements 
                        
                          
                            
                              | Grade | 
                              Diameter, in. | 
                              Min 
                                tempering 
                                temp F | 
                              Tensile 
                                strength 
                                min psi | 
                              Yield 
                                point 
                                min psi | 
                              Elongation 
                                in 2 in. 
                                min pct | 
                              Reduction 
                                of area 
                                min pct | 
                             
                            
                              | A354 Grade BC | 
                              {2-1/2 and under 
                                {Over 2-1/2 to 4 incl. | 
                              850 | 
                              125,000 | 
                              109,000 | 
                              16 | 
                              50 | 
                             
                            
                              | A354 Grade BD | 
                              1-1/2 and under | 
                              850 | 
                              115,000 | 
                              99,000 | 
                              16 | 
                              45 | 
                             
                            
                              A193 Grade B7 
                                Chromium- 
                                Molybdenum | 
                              {2-1/2 and under 
                                {Over 2-1/2 to 4 incl. 
                                {Over 4 to 7 incl. | 
                              850 | 
                              150,000 | 
                              125,000 | 
                              14 | 
                              35 | 
                             
                            
                              A193 Grade B16 
                                Chromium- 
                                Molybdenum- 
                                Vanadium | 
                              {2-1/2 and under 
                                {Over 2-1/2 to 4 incl. 
                                {Over 4 to 7 incl. | 
                              1100 
                                1100 
                                1100 | 
                              125,000 
                                115,000 
                                100,000 | 
                              105,000 
                                95,000 
                                75,000 | 
                              16 
                                16 
                                18 | 
                              50 
                                50 
                                50 | 
                             
                            
                              A320 Grade L7 
                                Chromium- 
                                Molybdenum | 
                              2-1/2 and under | 
                              -- | 
                              125,000 | 
                              105,000 | 
                              16 | 
                              50 | 
                             
                            
                              A320 Grade L43 
                                Nickel-Chromium- 
                                Molybdenum | 
                              4 and under | 
                              -- | 
                              125,000 | 
                              105,000 | 
                              16 | 
                              50 | 
                             
                          
                         
                        Commonly used are the following grades of heat-treated alloy steel for high-pressure or extreme temperature service in diameters of 1/2 in. to 2 in., inclusive. Other grades and other diameters are available on special order. 
                        ASTM A354, Grades BC and BD - heat-treated alloy steels for applications at normal atmospheric temperatures where high strength is required. 
                        ASTM A193, Grade B7 - a heat-treated chromium-molybdenum steel widely used for medium high-temperature service. 
                        ASTM A193, Grade B16 - a heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service. 
                        ASTM A320, Grade L7 - This grade is intended for low-temperature service down to minus 150ºF and has a minimum Charpy impact value of 15 ft-lb at this temperature. Sizes 2-1/2 in. and under. 
                        ASTM A320, Grade L43 - The same properties offered by Grade L7 in sizes up to 2-1/2 are obtainable up to 4 in. in Grade L43 
                        ASTM, SAE AND ISO GRADE MARKINGS AND MECHANICAL PROPERTIES FOR STEEL FASTENERS
                        
                          
                            
                              
                                
                                  Identification 
                                    Grade Mark  | 
                                  Specification  | 
                                  Fastener 
                                    Description  | 
                                  Material  | 
                                  Nominal Size 
                                    Range (in.)  | 
                                  Mechanical Properties  | 
                                 
                                
                                  Proof Load 
                                    (psi)  | 
                                  Yield Strength 
                                    Min (psi)  | 
                                  Tensile Strength 
                                    Min (psi)  | 
                                 
                                
                                   
                                    No 
                                    Grade 
                                    Mark  | 
                                  SAE J429 
                                    Grade 1  | 
                                  Bolts,  
                                    Screws,  
                                    Studs  | 
                                  Low or Medium Carbon Steel  | 
                                  1/4 thru 1-1/2  | 
                                  33,000  | 
                                  36,000  | 
                                  60,000  | 
                                 
                                
                                  ASTM A307 
                                    Grades A&B  | 
                                  Low Carbon Steel  | 
                                  1/4 thru 4  | 
                                  --  | 
                                  --  | 
                                 
                                
                                  SAE J429 
                                    Grade 2  | 
                                  Low or Medium Carbon Steel  | 
                                  1/4 thru 3/4 Over 3/4 to 1-1/2  | 
                                  55,000 
                                    33,000  | 
                                  57,000 
                                    36,000  | 
                                  74,000 
                                    60,000  | 
                                 
                                
                                   
                                    No 
                                    Grade 
                                    Mark  | 
                                  SAE J429 
                                    Grade 4  | 
                                  Studs  | 
                                  Medium Carbon Cold Drawn Steel  | 
                                  1/4 thru 1-1/2  | 
                                  --  | 
                                  100,000  | 
                                  115,000  | 
                                 
                                
                                   
                                    B5  | 
                                  ASTM A193 
                                    Grade B5  | 
                                   | 
                                  AISI 501  | 
                                  1/4 Thru 4  | 
                                  --  | 
                                  80,000  | 
                                  100,000  | 
                                 
                                
                                   
                                    B6  | 
                                  ASTM A193 
                                    Grade B6  | 
                                  AISI 410  | 
                                  85,000  | 
                                  110,000  | 
                                 
                                
                                   
                                    B7  | 
                                  ASTM A193 
                                    Grade B7  | 
                                  AISI 4140, 4142, OR 4105  | 
                                  1/4 thru 2-1/2 
                                    Over 2-1/2 thru 4 
                                    Over 4 thru 7  | 
                                  -- 
                                    -- 
                                    --  | 
                                  105,000 
                                    95,000 
                                    75,000  | 
                                  125,000 
                                    115,000 
                                    100,000  | 
                                 
                                
                                   
                                    B16  | 
                                  ASTM A193 
                                    Grade B16  | 
                                  CrMoVa Alloy Steel  | 
                                  105,000 
                                    95,000 
                                    85,000  | 
                                  125,000 
                                    115,000 
                                    100,000  | 
                                 
                                
                                   
                                    B8  | 
                                  ASTM A193 
                                    Grade B8  | 
                                  AISI 304  | 
                                  1/4 and larger  | 
                                  --  | 
                                  30,000  | 
                                  75,000  | 
                                 
                                
                                   
                                    B8C  | 
                                  ASTM A193 
                                    Grade B8C  | 
                                  AISI 347  | 
                                 
                                
                                   
                                    B8M  | 
                                  ASTM A193 
                                    Grade B8M  | 
                                  AISI 316  | 
                                 
                                
                                   
                                    B8T  | 
                                  ASTM A193 
                                    Grade B8T  | 
                                  Bolts, 
                                    Screws, 
                                    Studs for High-Temperature Service  | 
                                  AISI 321  | 
                                  1/4 and larger  | 
                                  --  | 
                                  30,000  | 
                                  75,000  | 
                                 
                                
                                   
                                          B8 | 
                                  ASTM A193 
                                    Grade B8  | 
                                  AISI 304 
                                    Strain Hardened  | 
                                  1/4 thr 3/4 
                                    Over 3/4 thru 1 
                                    Over 1 thru 1-1/4 
                                    Over 1-1/4 thru 1-1/2  | 
                                  -- 
                                    -- 
                                    -- 
                                    --  | 
                                  100,000 
                                    80,000 
                                    65,000 
                                    50,000  | 
                                  125,000 
                                    115,000 
                                    105,000 
                                    100,000  | 
                                 
                                
                                   
                                          B8C | 
                                  ASTM A193 
                                    Grade B8C  | 
                                  AISI 347 
                                    Strain Hardened  | 
                                 
                                
                                   
                                          B8M | 
                                  ASTM A193 
                                    Grade B8M  | 
                                  AISI 316 
                                    Strain Hardened  | 
                                  95,000 
                                    80,000 
                                    65,000 
                                    50,000  | 
                                  110,000 
                                    100,000 
                                    95,000 
                                    90,000  | 
                                 
                                
                                   
                                          B8T | 
                                  ASTM A193 
                                    Grade B8T  | 
                                  AISI 321 
                                    Strain Hardened  | 
                                  100,000 
                                    80,000 
                                    65,000 
                                    50,000  | 
                                  125,000 
                                    115,000 
                                    105,000 
                                    100,000  | 
                                 
                                
                                   
                                    L7  | 
                                  ASTM A320 
                                    Grade L7  | 
                                  Bolts, 
                                    Screws, 
                                    Studs for Low-Temperature Service  | 
                                  AISI 4140, 
                                    4142 or 4145  | 
                                  1/4 thru 2-1/2  | 
                                  --  | 
                                  105,000  | 
                                  125,000  | 
                                 
                                
                                   
                                    L7A  | 
                                  ASTM A320 
                                    Grade L7A  | 
                                  AISI 4037  | 
                                 
                                
                                   
                                    L7B  | 
                                  ASTM A320 
                                    Grade L7B  | 
                                  AISI 4137  | 
                                 
                                
                                   
                                    L7C  | 
                                  ASTM A320 
                                    Grade LC7  | 
                                  AISI 8740  | 
                                 
                                
                                   
                                    L43  | 
                                  ASTM A320 
                                    Grade L43  | 
                                  AISI 4340  | 
                                  1/4 thru 4  | 
                                  --  | 
                                  105,000  | 
                                  125,000  | 
                                 
                                
                                   
                                    B8  | 
                                  ASTM A320 
                                    Grade B8  | 
                                  Bolts, 
                                    Screws, 
                                    Studs for Low-Temperature Service  | 
                                  AISI 304  | 
                                  1/4 and larger  | 
                                  --  | 
                                  30,000  | 
                                  75,000  | 
                                 
                                
                                   
                                    B8C  | 
                                  ASTM A320 
                                    Grade B8C  | 
                                  AISI 347  | 
                                 
                                
                                   
                                    B8T  | 
                                  ASTM A320 
                                    Grade B8T  | 
                                  AISI 321  | 
                                 
                                
                                   
                                    B8F  | 
                                  ASTM A320 
                                    Grade B8F  | 
                                  AISI 303 
                                    or 303Se  | 
                                 
                                
                                   
                                    B8M  | 
                                  ASTM A320 
                                    Grade B8M  | 
                                  AISI 316  | 
                                 
                                
                                   
                                    B8  | 
                                  ASTM A320 
                                    Grade B8  | 
                                  AISI 304  | 
                                  1/4 thru 3/4 
                                    Over 3/4 thru 1 
                                    Over 1 thru 1-1/4 
                                    Over 1-1/4 thru 1-1/2  | 
                                  -- 
                                    -- 
                                    -- 
                                    --  | 
                                  100,000 
                                    80,000 
                                    65,00 
                                    50,00  | 
                                  100,000 
                                    80,000 
                                    65,00 
                                    50,00  | 
                                 
                                
                                   
                                    B8C  | 
                                  ASTM A320 
                                    Grade B8C  | 
                                  AISI 347  | 
                                 
                                
                                   
                                    B8F  | 
                                  ASTM A320 
                                    Grade B8F  | 
                                  AISI 303 
                                    or 303Se  | 
                                 
                                
                                   
                                    B8M  | 
                                  ASTM A320 
                                    Grade B8M  | 
                                  AISI 316  | 
                                 
                                
                                   
                                    B8T  | 
                                  ASTM A320 
                                    Grade B8T  | 
                                  AISI 321  | 
                                 
                                
                                   | 
                                  SAE J429 
                                    Grade 5  | 
                                  Bolts, 
                                    Screws, 
                                    Studs  | 
                                  Medium Carbon Steel, Quenched and Tempered  | 
                                  1/4 thru 1 
                                    Over 1 to 1-1/2  | 
                                  85,000 
                                    74,000  | 
                                  92,000 
                                    81,000  | 
                                  120,000 
                                    105,000  | 
                                 
                                
                                  ASTM A449  | 
                                  1/4 thru 1 
                                    Over 1 to 1-1/2 
                                    Over 1-1/2 thru 3  | 
                                  85,000 
                                    74,000 
                                    55,000  | 
                                  92,000 
                                    81,000 
                                    58,000  | 
                                  120,000 
                                    105,000 
                                    90,000  | 
                                 
                                
                                   | 
                                  SAE J429 
                                    Grade 5.1  | 
                                  Sems  | 
                                  Low or Medium Carbon Steel, Quenched and Tempered  | 
                                  No. 6 
                                    thru 3/8  | 
                                  85,000  | 
                                  --  | 
                                  120,000  | 
                                 
                                
                                   | 
                                  SAE J429 
                                    Grade 5.2  | 
                                  Bolts, 
                                    Screws, 
                                    Studs  | 
                                  Low Carbon Martensitic Steel, Quenched and Tempered  | 
                                  1/4 thru 1  | 
                                  85,000  | 
                                  92,000  | 
                                  120,000  | 
                                 
                                
                                   
                                    A325  | 
                                  ASTM A325 
                                    Type 1  | 
                                  High Strength 
                                    Structural Bolts  | 
                                  Medium Carbon Steel, Quenched and Tempered  | 
                                  1/2 thru 1 
                                    1-1/8 thru 1-1/2  | 
                                  85,000 
                                    74,000  | 
                                  92,000 
                                    81,000  | 
                                  120,000 
                                    105,000  | 
                                 
                                
                                   
                                    A325  | 
                                  ASTM A325 
                                    Type 2  | 
                                  Low Carbon Martensitic Steel, Quenched and Tempered  | 
                                  1/2 thru 1  | 
                                  85,000  | 
                                  92,000  | 
                                  120,000  | 
                                 
                                
                                   
                                          A325 | 
                                  ASTM A325 
                                    Type 3  | 
                                  Atmospheric Corrosion Resisting Steel, Quenched and Tempered  | 
                                  1/2 thru 1 
                                    1-1/8 thru 1-1/2  | 
                                  85,000 
                                    74,000  | 
                                  92,000 
                                    81,000  | 
                                  120,000 
                                    105,000  | 
                                 
                                
                                   
                                    BB  | 
                                  ASTM A354 
                                    Grade BB  | 
                                  Bolts, 
                                    Studs  | 
                                  Alloy Steel, Quenched and Tempered  | 
                                  1/4 thru 2-1/2 
                                    2-3/4 thru 4  | 
                                  80,000 
                                    75,000  | 
                                  83,000 
                                    78,000  | 
                                  105,000 
                                    100,000  | 
                                 
                                
                                   
                                    BC  | 
                                  ASTM A354 
                                    Grade BC  | 
                                  105,000 
                                    95,000  | 
                                  109,000 
                                    99,000  | 
                                  125,000 
                                    115,000  | 
                                 
                                
                                   | 
                                  SAE J429 
                                    Grade 7  | 
                                  Bolts, 
                                    Screws,  | 
                                  Medium Carbon Alloy Steel, Quenched and Tempered 4  | 
                                  1/4 thru 1-1/2  | 
                                  105,000  | 
                                  115,000  | 
                                  133,000  | 
                                 
                                
                                   | 
                                  SAE J429 
                                    Grade 8  | 
                                  Bolts, 
                                    Screws, 
                                    Studs  | 
                                  Medium Carbon Alloy Steel, Quenched and Tempered  | 
                                  1/4 thru 1-1/2  | 
                                  120,000  | 
                                  130,000  | 
                                  150,000  | 
                                 
                                
                                  ASTM A354 
                                    Grade BD  | 
                                  Alloy Steel, Quenched and Tempered 4  | 
                                 
                                
                                   
                                    No Grade 
                                    Mark  | 
                                  SAE J429 
                                    Grade 8.1  | 
                                  Studs  | 
                                  Medium Carbon Alloy or SAE 1041 Modified Elevated Temperature Drawn Steel  | 
                                  1/4 thru 1-1/2  | 
                                  120,000  | 
                                  130,000  | 
                                  150,000  | 
                                 
                                
                                   
                                    A490  | 
                                  ASTM A490  | 
                                  High Strength Structural Bolts  | 
                                  Alloy Steel, Quenched and Tempered  | 
                                  1/2 thru 1-1/2  | 
                                  120,000  | 
                                  130,000  | 
                                  150,000 min 
                                    170,000 max  | 
                                 
                                
                                   
                                    No Grade 
                                    Mark  | 
                                  ISO R898 
                                    Class 4.6  | 
                                  Bolts, 
                                    Screws, 
                                    Studs  | 
                                  Medium Carbon Steel, Quenched and Tempered  | 
                                  All Sizes 
                                    thru 1-1/2  | 
                                  33,000  | 
                                  36,000  | 
                                  60,000  | 
                                 
                                
                                   
                                    No Grade 
                                    Mark  | 
                                  ISO R898 
                                    Class 5.8  | 
                                  55,000  | 
                                  57,000  | 
                                  74,000  | 
                                 
                                
                                  8.8 
                                           
                                    or
                                      
                                    88  | 
                                  ISO R898 
                                    Class 8.8  | 
                                  Alloy Steel, Quenched and Tempered  | 
                                  85,000  | 
                                  92,000  | 
                                  120,000  | 
                                 
                                
                                  10.9 
                                           
                                    or
                                      
                                    109  | 
                                  ISO R898 
                                    Class 10.9  | 
                                  120,000  | 
                                  130,000  | 
                                  150,000  | 
                                 
                              
                             
                          
                         
                        FASTENER IDENTIFICATION MARKING
                        
                          
                            
                              
                                
                                  Grade 
                                    Identification 
                                    Marking | 
                                  Specification | 
                                  Material | 
                                  Nominal Size 
                                    In. | 
                                  Proof 
                                    Load 
                                    Stress 
                                    ksi | 
                                  Hardness 
                                    Rockwell | 
                                  See 
                                    Note | 
                                 
                                
                                  | Min | 
                                  Max | 
                                 
                                
                                    
                                    No Mark | 
                                  ASTM A563 - Grade 0 | 
                                  Carbon Steel | 
                                  1/4 thru 1-1/2 | 
                                  69 | 
                                  B55 | 
                                  C32 | 
                                  3,4 | 
                                 
                                
                                  | ASTM A563 - Grade A | 
                                  Carbon Steel | 
                                  1/4 thru 1-1/2 | 
                                  90 | 
                                  B68 | 
                                  C32 | 
                                  3,4 | 
                                 
                                
                                  | ASTM A563 - Grade B | 
                                  Carbon Steel | 
                                  1/4 thru 1 | 
                                  120 | 
                                  B69 | 
                                  C32 | 
                                  3,4 | 
                                 
                                
                                  | over 1 thru 1-1/2 | 
                                  105 | 
                                 
                                
                                    | 
                                  ASTM A563 - Grade C | 
                                  Carbon Steel 
                                    May be Quenched 
                                    and Tampered | 
                                  1/4 thru 4 | 
                                  144 | 
                                  B78 | 
                                  C38 | 
                                  5 | 
                                 
                                
                                    | 
                                  ASTM A563 - Grade C3 | 
                                  Atmospheric 
                                    Corrosion 
                                    Resistant Steel 
                                    May be Quenched 
                                    and Tampered | 
                                  1/4 thru 4 | 
                                  144 | 
                                  B78 | 
                                  C38 | 
                                  5,9 | 
                                 
                                
                                    | 
                                  ASTM A563 - Grade D | 
                                  Carbon Steel 
                                    May be Quenched 
                                    and Tampered | 
                                  1/4 thru 4 | 
                                  150 | 
                                  B84 | 
                                  C38 | 
                                  6 | 
                                 
                                
                                    | 
                                  ASTM A563 - Grade DH | 
                                  Carbon Steel 
                                    Quenched 
                                    and Tampered | 
                                  1/4 thru 4 | 
                                  175 | 
                                  C24 | 
                                  C38 | 
                                  6 | 
                                 
                                
                                    | 
                                  ASTM A563 - Grade DH3 | 
                                  Atmospheric 
                                    Corrosion 
                                    Resistant Steel, 
                                    Quenched 
                                    and Tampered | 
                                  1/4 thru 4 | 
                                  175 | 
                                  C24 | 
                                  C38 | 
                                  5,9 | 
                                 
                                
                                    | 
                                  ASTM A194 - Grade 1 | 
                                  Carbon Steel | 
                                  1/4 thru 4 | 
                                  130 | 
                                  B70 | 
                                  -- | 
                                  7 | 
                                 
                                
                                    | 
                                  ASTM A194 - Grade 2 | 
                                  Medium Carbon 
                                    Steel | 
                                  1/4 thru 4 | 
                                  150 | 
                                  159 | 
                                  352 | 
                                  7,8 | 
                                 
                                
                                    | 
                                  ASTM A194 - Grade 2H | 
                                  Medium Carbon 
                                    Steel, Quenched 
                                    and Tempered | 
                                  1/4 thru 4 | 
                                  175 | 
                                  C24 | 
                                  C38 | 
                                  7 | 
                                 
                                
                                    | 
                                  ASTM A194 - Grade 2HM | 
                                  Medium Carbon 
                                    Steel, Quenched 
                                    and Tempered | 
                                  1/4 thru 4 | 
                                  150 | 
                                  159 | 
                                  237 | 
                                  7,8 | 
                                 
                                
                                    | 
                                  ASTM A194 - Grade 4 | 
                                  Medium Carbon 
                                    Alloy Steel, 
                                    Quenched 
                                    and Tempered | 
                                  1/4 thru 4 | 
                                  175 | 
                                  C24 | 
                                  C38 | 
                                  7 | 
                                 
                                
                                    | 
                                  ASTM A194 - Grade 7 | 
                                  Medium Carbon 
                                    Alloy Steel, 
                                    Quenched 
                                    and Tempered | 
                                  1/4 thru 4 | 
                                  175 | 
                                  C24 | 
                                  C38 | 
                                  7 | 
                                 
                                
                                    | 
                                  ASTM A194 - Grade 7M | 
                                  Medium Carbon 
                                    Alloy Steel, 
                                    Quenched 
                                    and Tempered | 
                                  1/4 thru 4 | 
                                  150 | 
                                  159 | 
                                  237 | 
                                  7 | 
                                 
                                
                                  | See Note 1,2 | 
                                  10 | 
                                    | 
                                    | 
                                    | 
                                    | 
                                    | 
                                    | 
                                 
                              
                             
                          
                         
                        NOTES: 
                        
                          
                            - In addition to the indicated grade marking, all grades, except A563 grades O, A and B, must be marked for manufacturer identification.
 
                            - The markings shown for all grades of A194 nuts are for cold formed and hot forged nuts. When nuts are machined from bar stock the nut must be additionally marked with the letter 'B'.
 
                            - Nuts are not required to be marked unless specified by the purchaser. When marked, the identification marking shall be the grade letter O, A or B.
 
                            - Properties shown are those of nonplated or noncoated coarse thread hex nuts.
 
                            - Properties shown are those of coarse thread heavy hex nuts.
 
                            - Properties shown are those of coarse thread heavy hex nuts.
 
                            - Properties shown are those of coarse 8-pitch thread heavy hex nuts.
 
                            - Hardnesses are Brinell Hardness Numbers.
 
                            - The nut manufacturer, at his option, may add other markings to indicate the use of atmospheric corrosion resistant steel.
 
                            - Specifications --
 
                              ASTM A563 -- Carbon and Alloy Steel Nuts. 
                              ASTM A194/A194M -- Carbon and Alloy Steel Nuts for Bolts for High Pressure and High Temperature Service 
                           
                         
                         
                          MECHANICAL REQUIREMENTS FOR STAINLESS STEEL FASTENERS
                        
                          
                            
                              
                                
                                  | Grade(1) | 
                                  General 
                                    Descpription 
                                    of Material | 
                                  Bolts, Screws and Studs | 
                                  Nuts | 
                                 
                                
                                  Full Size Bolts, 
                                    Screws, Studs | 
                                  Machine Test Sprecimens of  
                                    Bolts, Screws, Studs | 
                                  Hardness 
                                    Rockwell | 
                                  Proof 
                                    Load 
                                    Stress | 
                                  Hardness 
                                    Rockwell | 
                                 
                                
                                  Yield (2) 
                                    Strength | 
                                  Tensile  
                                    Strength | 
                                  Yield (2) 
                                    Strength | 
                                  Tensile  
                                    Strength | 
                                  Elong- 
                                    ation(3) | 
                                 
                                
                                  | Min psi | 
                                  Min psi | 
                                  Min psi | 
                                  Min psi | 
                                  % Min. | 
                                  Min | 
                                  psi | 
                                  Min | 
                                 
                                
                                  | 303A | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Sol. Annealed | 
                                  30,000 | 
                                  75,000 | 
                                  30,000 | 
                                  75,000 | 
                                  20 | 
                                  B75 | 
                                  75,000 | 
                                  B75 | 
                                 
                                
                                  | 304-A | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Sol. Annealed | 
                                  30,000 | 
                                  75,000 | 
                                  30,000 | 
                                  75,000 | 
                                  20 | 
                                  B75 | 
                                  75,000 | 
                                  B75 | 
                                 
                                
                                  | 304 | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Cold Worked | 
                                  50,000 | 
                                  90,000 | 
                                  45,000 | 
                                  85,000 | 
                                  20 | 
                                  B85 | 
                                  90,000 | 
                                  B85 | 
                                 
                                
                                  | 304-SH | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Strain Hardened | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  15 | 
                                  C25 | 
                                  See 
                                    Note 6 | 
                                  C20 | 
                                 
                                
                                  | 305-A | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Sol. Annealed | 
                                  30,000 | 
                                  75,000 | 
                                  30,000 | 
                                  75,000 | 
                                  20 | 
                                  B70 | 
                                  75,000 | 
                                  B70 | 
                                 
                                
                                  | 305 | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Cold Worked | 
                                  50,000 | 
                                  90,000 | 
                                  45,000 | 
                                  85,000 | 
                                  20 | 
                                  B85 | 
                                  90,000 | 
                                  B85 | 
                                 
                                
                                  | 305-SH | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Strain Hardened | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  15 | 
                                  C25 | 
                                  See 
                                    Note 6 | 
                                  C20 | 
                                 
                                
                                  | 316-A | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Sol. Annealed | 
                                  30,000 | 
                                  75,000 | 
                                  30,000 | 
                                  75,000 | 
                                  20 | 
                                  B70 | 
                                  75,000 | 
                                  B70 | 
                                 
                                
                                  | 316 | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Cold Worked | 
                                  50,000 | 
                                  90,000 | 
                                  45,000 | 
                                  85,000 | 
                                  20 | 
                                  B85 | 
                                  90,000 | 
                                  B85 | 
                                 
                                
                                  | 316-SH | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Strain Hardened | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  See 
                                    Note 6 | 
                                  15 | 
                                  C25 | 
                                  See 
                                    Note 6 | 
                                  C20 | 
                                 
                                
                                  | XM7-A | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Sol. Annealed | 
                                  30,000 | 
                                  75,000 | 
                                  30,000 | 
                                  75,000 | 
                                  20 | 
                                  B70 | 
                                  75,000 | 
                                  B70 | 
                                 
                                
                                  | XM7 | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Cold Worked | 
                                  50,000 | 
                                  90,000 | 
                                  45,000 | 
                                  85,000 | 
                                  20 | 
                                  B85 | 
                                  90,000 | 
                                  B85 | 
                                 
                                
                                  | 384-A | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Sol. Annealed | 
                                  30,000 | 
                                  75,000 | 
                                  30,000 | 
                                  75,000 | 
                                  20 | 
                                  B70 | 
                                  75,000 | 
                                  B70 | 
                                 
                                
                                  | 384 | 
                                  Austenitic 
                                    Stainless Steel- 
                                    Cold Worked | 
                                  50,000 | 
                                  90,000 | 
                                  45,000 | 
                                  85,000 | 
                                  20 | 
                                  B85 | 
                                  90,000 | 
                                  B85 | 
                                 
                                
                                  | 410-H | 
                                  Martensitic 
                                    Stainless Steel- 
                                    Hardened and 
                                    Tempered | 
                                  95,000 | 
                                  125,000 | 
                                  95,000 | 
                                  125,000 | 
                                  20 | 
                                  C22 | 
                                  125,000 | 
                                  C22 | 
                                 
                                
                                  | 410-HT | 
                                  Martensitic 
                                    Stainless Steel- 
                                    Hardened and 
                                    Tempered | 
                                  135,000 | 
                                  180,000 | 
                                  135,000 | 
                                  180,000 | 
                                  12 | 
                                  C36 | 
                                  180,000 | 
                                  C36 | 
                                 
                                
                                  | 416-H | 
                                  Martensitic 
                                    Stainless Steel- 
                                    Hardened and 
                                    Tempered | 
                                  95,000 | 
                                  125,000 | 
                                  95,000 | 
                                  125,000 | 
                                  20 | 
                                  C22 | 
                                  125,000 | 
                                  C22 | 
                                 
                                
                                  | 416-HT | 
                                  Martensitic 
                                    Stainless Steel- 
                                    Hardened and 
                                    Tempered | 
                                  135,000 | 
                                  180,000 | 
                                  135,000 | 
                                  180,000 | 
                                  12 | 
                                  C36 | 
                                  180,000 | 
                                  C36 | 
                                 
                                
                                  | 430 | 
                                  Ferritic 
                                    Stainless Steel | 
                                  40,000 | 
                                  70,000 | 
                                  40,000 | 
                                  70,000 | 
                                  20 | 
                                  B75 | 
                                  70,000 | 
                                  B75 | 
                                 
                              
                             
                             
                             
                            Note 6. Austenitic stainless steel, strain hardened bolts, screws, studs, and nuts shall have the following strength per properties. 
                            
                              
                                
                                  
                                    
                                      Product  
                                        Size | 
                                      Bolts, Screws, Studs | 
                                      Nuts | 
                                     
                                    
                                      | Tested Full Size | 
                                      Machine Test Specimens, | 
                                      Proof 
                                        Load 
                                        Stress | 
                                     
                                    
                                      Yield 
                                        Strength | 
                                      Tensile 
                                        Strength | 
                                      Yield 
                                        Strength | 
                                      Tensile 
                                        Strength | 
                                     
                                    
                                      | in. | 
                                      min psi | 
                                      min psi | 
                                      min psi | 
                                      min psi | 
                                      psi | 
                                     
                                    
                                      | to 5/8 in. | 
                                      100,000 | 
                                      125,000 | 
                                      90,000 | 
                                      115,000 | 
                                      125,000 | 
                                     
                                    
                                      | over 5/8 to 1 in. | 
                                      70,000 | 
                                      105,000 | 
                                      65,000 | 
                                      100,000 | 
                                      105,000 | 
                                     
                                    
                                      | over 1 to 1-1/2 in. | 
                                      50,000 | 
                                      90,000 | 
                                      45,000 | 
                                      85,000 | 
                                      90,000 | 
                                     
                                  
                                 
                              
                             
                          
                         
                        
                        
                        
                     |