| DIAMETER | 0.3116 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM |
| HEAD STYLE | FLAT |
| HEIGHT | 0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890,ALLOY NO. 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| PIN HEAD DIAMETER | 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM |
| SPECIAL FEATURES | UNDERCUT 0.03 TO 0.05 IN. W BY 0.28 TO 0.29 |
| STYLE DESIGNATOR | STRAIGHT |
| SURFACE FINISH | 125.0 MICROINCHES ALL OTHER SURFACES |
| SURFACE FINISH | 32.0 MICROINCHES SHANK END |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-16232,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE MANGANESE OVERALL |
| UNDER HEAD LENGTH | 0.572 INCHES MINIMUM AND 0.582 INCHES MAXIMUM |