| EFFECTIVE LENGTH | 1.510 INCHES MINIMUM AND 1.515 INCHES MAXIMUM |
| DIAMETER | 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM |
| FIRST END STYLE | SQUARE |
| HEAD STYLE | FLAT |
| HEIGHT | 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OVERALL |
| PIN HEAD DIAMETER | 0.187 INCHES NOMINAL |
| STYLE DESIGNATOR | GROOVE |
| SURFACE FINISH | 90.0 MICROINCHES OUTSIDE DIAMETER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| UNDERCUT DIAMETER | 0.1135 INCHES MINIMUM AND 0.1165 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.010 INCHES MINIMUM AND 0.012 INCHES MAXIMUM |
| UNDER HEAD LENGTH | 1.560 INCHES MINIMUM AND 1.565 INCHES MAXIMUM |