SS Hex bolt manufacturer
Chemical Compositions
| Grade | MaterialSimilar to.. | C Max | Mn Max | P Max | S Max | Si Max | Cr | Ni | Mo |
| A2 / B8 A4 / B8M |
AISI 304 | 0.08 | 2.00 | 0.05 | 0.030 | 1.00 | 17.00-20.00 | 8.0-13.0 | — |
| AISI 316 | 0.08 | 2.00 | 0.05 | 0.030 | 1.00 | 16.00-18.50 | 10.0-14.4 | 2.00-3.00 |
Physical Properties
| Grade | Standard | Property Class | Tensile Strengtd Min. (N/mm2) |
Yield Strengtd 0.2% Offset Min. (N/mm2) |
Elongation After Fracture AL mm Min. |
| A2 & A4 | ISO 3506 | 70 | 700 | 450 | 0.4d |
| 80 | 800 | 600 | 0.3d |
| Grade | Standard | Property Class | Diameter In. | Tensile Strengtd Min.(KSI) |
Yield Strengtd 0.2% Offset Min. (KSI) |
Elongation In 4D min.% |
Reduction Of Area Min% |
Hardness (Max.) Rockwell |
| B8 B8M |
ASTMA193/A193M | Class1 Class2 Class1 Class2 |
All | 75 | 30 | 30 | 50 | B96 |
| To 3/4 | 125 | 100 | 12 | 35 | C35 | |||
| Over 3/4 to 1 | 115 | 80 | 15 | 35 | C35 | |||
| All | 75 | 30 | 30 | 50 | B96 | |||
| To 3/4 | 110 | 96 | 15 | 45 | C35 | |||
| Over 3/4 to 1 | 100 | 80 | 20 | 45 | C35 |
Torsional Strength as Per ISO 3506
For Self Tapping Screw
| Thread | ST 2.2 | ST 2.6 | ST 2.9 | ST 3.3 | ST 3.5 | ST 3.9 | ST 4.2 | ST 4.8 | ST 5.5 | ST 6.3 | ST 8 |
| Min Torsional Strengtd Nm |
0.45 | 0.9 | 1.5 | 2 | 2.7 | 3.4 | 4.4 | 6.3 | 10 | 13.6 | 30.5 |
For Austenitic Bolts and Screws M1.6 to M16 (Coarse Thread)
| Thread | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 | ||
| Min. Breaking Torque, Mbmin. –Nm |
Property Class |
70 | 0.20 | 0.4 | 0.9 | 1.6 | 3.8 | 7.8 | 13 | 32 | 65 | 110 | 290 |
| 80 | 0.24 | 0.48 | 0.96 | 1.8 | 4.3 | 8.8 | 15 | 37 | 74 | 130 | 330 | ||
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