| FIRST END STYLE | SQUARE |
| FIRST STEP DIAMETER | 0.435 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| FIRST STEP LENGTH | 0.563 INCHES NOMINAL |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | FLAT |
| HEIGHT | 0.137 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 COMP 4130,C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OVERALL |
| PIN HEAD DIAMETER | 0.750 INCHES NOMINAL |
| SECOND STEP DIAMETER | 0.372 INCHES MINIMUM AND 0.374 INCHES MAXIMUM |
| SECOND STEP LENGTH | 0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |
| UNDER HEAD LENGTH | 0.938 INCHES MINIMUM AND 0.941 INCHES MAXIMUM |
| STYLE DESIGNATOR | SHOULDER |
| SURFACE FINISH | 63.0 MICROINCHES OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 1,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |