| EFFECTIVE LENGTH | 0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM |
| DIAMETER | 0.310 INCHES MINIMUM AND 0.318 INCHES MAXIMUM |
| FIRST END STYLE | SQUARE |
| HEAD STYLE | FLAT |
| HEIGHT | 0.049 INCHES MINIMUM AND 0.059 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OVERALL |
| PIN HEAD DIAMETER | 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| STYLE DESIGNATOR | GROOVE |
| SURFACE TREATMENT | CADMIUM OVERALL |
| UNDERCUT DIAMETER | 0.288 INCHES MINIMUM AND 0.292 INCHES MAXIMUM |
| UNDER HEAD LENGTH | 0.585 INCHES MINIMUM AND 0.595 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM |