| DRIVE SURFACE SIZE | 0.375 INCHES NOMINAL SINGLE END |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| OVERALL LENGTH | 12.125 INCHES NOMINAL |
| OVERALL WIDTH | 1.125 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A322 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR ASTM-A331 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| WRENCHING SURFACE SHAPE | HEXAGON SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 0.625 INCHES NOMINAL SINGLE END |
| STYLE DESIGNATOR | STRAIGHT SINGLE HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-1623 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |