Socket Head Shoulder Screw (UNC)
| Diameter Size | 1/4 | 5/16 | 3/8 | 1/2 | 5/8 | 3/4 |
| A/F | 1/8 | 5/32 | 3/16 | 1/4 | 5/16 | 3/8 |
| Head Diameter (max.) | 0.375" | 0.438" | 0.562" | 0.750" | 0.875" | 1.0" |
| Head Height (max.) | 0.188" | 0.219" | 0.250" | 0.312" | 0.375" | 0.50" |
| Thread Size | 3/16-24G | 1/4-20G | 5/16-18G | 3/8-16G | 1/2-12G | 5/8-11G |
| Thread Length | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 |
| Body Length | 3/8 - 4" | 3/8 - 4" | 1/2 - 6" | 5/8 - 6" | 3/4 - 6" | 1" - 6" |
