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Socket Head Cap Screw (SHCS)
The standard for socket cap screws. It features a cylindrical head with a recessed hex. It can be installed into a counter-bored hole or above the surface of the material.
Dimensions
ASME B18.3
| Thread Dia. | Head Dia. | Head Height | Hex Socket |
|---|---|---|---|
| No. 0 | 0.091 - 0.096 | 0.057 - 0.060 | 0.050 |
| No. 1 | 0.112 - 0.118 | 0.070 - 0.073 | 1/16 |
| No. 2 | 0.134 - 0.140 | 0.083 - 0.086 | 5/64 |
| No. 3 | 0.154 - 0.161 | 0.095 - 0.099 | 5/64 |
| No. 4 | 0.176 - 0.183 | 0.108 - 0.112 | 3/32 |
| No. 5 | 0.198 - 0.205 | 0.121 - 0.125 | 3/32 |
| No. 6 | 0.218 - 0.226 | 0.134 - 0.138 | 7/64 |
| No. 8 | 0.262 - 0.270 | 0.159 - 0.164 | 9/64 |
| No. 10 | 0.303 - 0.312 | 0.185 - 0.190 | 5/32 |
| 1/4 | 0.365 - 0.375 | 0.244 - 0.250 | 3/16 |
| 5/16 | 0.457 - 0.469 | 0.306 - 0.312 | 1/4 |
| 3/8 | 0.550 - 0.562 | 0.368 - 0.375 | 5/16 |
| 7/16 | 0.642 - 0.656 | 0.430 - 0.438 | 3/8 |
| 1/2 | 0.735 - 0.750 | 0.492 - 0.500 | 3/8 |
| 5/8 | 0.921 - 0.938 | 0.616 - 0.625 | 1/2 |
| 3/4 | 1.107 - 1.125 | 0.740 - 0.750 | 5/8 |
| 7/8 | 1.293 - 1.312 | 0.864 - 0.875 | 3/4 |
| 1 | 1.479 - 1.500 | 0.988 - 1.000 | 3/4 |
| 1 1/4 | 1.852 - 1.875 | 1.236 - 1.250 | 7/8 |
| 1 1/2 | 2.224 - 2.250 | 1.485 - 1.500 | 1 |