Inch series hexagon socket hex cap screws
ANSI / ASME B18.3
ANSI / ASME B18.3
Hex socket head cap screw
Standards:
Certifications:
Equivalent norm:
BS 4168-1, DIN 7984, DIN 6912
Materials:
SA193/320-B7/L7, B7M/L7M, B16, B8, B8M, B8T
Inconel 625 / 2.4856, Inconel 718 / 2.4668, Alloy 825
ASTM A 453 GR 660 Class A / B / C / D
1.7709 / 21CrMoV5-7+QT (GA)
1.7225 / 42CrMo4+QT (GC)
1.4913 / X19CrMoNbVN11-1+QT (VW)
1.4923 / X22CrMoV12-1+QT (V,VH
1.4980 / X6NiCrTiMoVB25-15-2+QT (SD)
Duplex: F51 / S31803 / 1.4462
Super duplex: F53 / S32750 / 1.4410, F55 / S32760 / 1.4501
all materialsTable of Sizes
| D1 | D2 | Dk | K | S | T | W |
|---|---|---|---|---|---|---|
| 1/4" | 6.185 - 6.350 | 8.992 - 9.525 | 6.198 - 6.350 | 4.763 - 4.826 | min 3.048 | min 2.413 |
| 5/16" | 7.755 - 7.938 | 11.328 - 11.913 | 7.772 - 7.925 | 6.350 - 6.426 | min 3.835 | min 3.023 |
| 3/8" | 9.342 - 9.525 | 13.716 - 14.275 | 9.347 - 9.525 | 7.938 - 8.026 | min 4.623 | min 3.632 |
| 7/16" | 10.907 - 11.113 | 16.027 - 16.662 | 10.922 - 11.125 | 9.525 - 9.627 | min 5.410 | min 4.216 |
| 1/2" | 12.494 - 12.700 | 18.415 - 19.050 | 12.497 - 12.700 | 9.525 - 9.627 | min 6.223 | min 4.826 |
| 9/16" | 14.067 - 14.288 | 21.006 - 21.412 | 14.072 - 14.275 | 11.113 - 11.227 | min 7.010 | min 5.436 |
| 5/8" | 15.654 - 15.875 | 23.216 - 23.825 | 15.646 - 15.875 | 12.700 - 12.827 | min 7.798 | min 6.045 |
| 3/4" | 18.811 - 19.050 | 27.788 - 28.575 | 18.796 - 19.050 | 15.875 - 16.027 | min 9.398 | min 7.239 |
| 7/8" | 21.963 - 22.225 | 32.791 - 33.325 | 21.946 - 22.225 | 19.050 - 19.228 | min 10.973 | min 8.458 |
| 1" | 25.110 - 25.400 | 37.490 - 38.100 | 25.095 - 25.400 | 19.050 - 19.228 | min 12.573 | min 9.652 |
| 1.1/8" | 28.158 - 25.575 | 42.291 - 42.875 | 28.219 - 28.575 | 22.225 - 22.479 | min 14.148 | min 10.871 |
| 1.1/4" | 31.333 - 31.750 | 47.041 - 47.625 | 31.394 - 31.750 | 22.225 - 22.479 | min 15.748 | min 12.065 |
| 1.3/8" | 34.463 - 34.925 | 51.765 - 52.375 | 34.544 - 34.925 | 25.400 - 25.908 | min 17.323 | min 13.284 |
| 1.1/2" | 37.638 - 38.100 | 56.490 - 57.150 | 37.719 - 38.100 | 25.400 - 25.908 | min 18.923 | min 14.478 |
| 1.3/4" | 43.929 - 44.450 | 65.964 - 66.675 | 44.044 - 44.450 | 31.750 - 32.385 | min 22.098 | min 16.891 |
| 2" | 50.241 - 50.800 | 75.438 - 76.200 | 50.368 - 50.800 | 38.100 - 38.862 | min 25.273 | min 19.304 |
More info about ANSI / ASME B18.3 - Hex socket head cap screw
1.7218 / 25CrMo4+QT (KG)
1.7225 / 42CrMo4+QT (GC)
1.7709 / 21CrMoV5-7+QT (GA)
1.4913 / X19CrMoNbVN11-1+QT (VW)
1.4923 / X22CrMoV12-1+QT1 (V)
1.4980 / X6NiCrTiMoVB25-15-2 (SD)
1.4986 / X7CrNiMoBNb16-16 (SD)
ASTM/ASME B7/L7 (On stock: 1/4″, 1/2″, 5/8″, 3/4″, 1″)
ASTM/ASME B16, B8,B8-2, B8M, B8M-2
