| EFFECTIVE LENGTH | 0.187 INCHES MINIMUM AND 0.192 INCHES MAXIMUM |
| DIAMETER | 0.120 INCHES MINIMUM AND 0.123 INCHES MAXIMUM |
| FIRST END STYLE | SQUARE |
| HEAD STYLE | FLAT |
| HEIGHT | 0.031 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP B1113 OVERALL |
| PIN HEAD DIAMETER | 0.175 INCHES MINIMUM AND 0.182 INCHES MAXIMUM |
| STYLE DESIGNATOR | GROOVE |
| SURFACE TREATMENT | CADMIUM OVERALL |
| UNDERCUT DIAMETER | 0.095 INCHES MINIMUM AND 0.097 INCHES MAXIMUM |
| UNDER HEAD LENGTH | 0.219 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.017 INCHES MINIMUM AND 0.019 INCHES MAXIMUM |