| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-681,CL 4B2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TYPE Z,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| OVERALL LENGTH | 4.469 INCHES MINIMUM AND |
| 4.531 INCHES MAXIMUM |
| WRENCHING END OUTSIDE DIAMETER | 4.781 INCHES MINIMUM AND |
| 4.844 INCHES MAXIMUM |
| DRIVE END OUTSIDE DIAMETER | 1.594 INCHES MINIMUM AND |
| 1.656 INCHES MAXIMUM |
| WRENCHING END OPENING DEPTH | 1.469 INCHES MINIMUM AND |
| 1.531 INCHES MAXIMUM |
| WRENCHING SURFACE SIZE | 3.531 INCHES MINIMUM AND |
| 3.547 INCHES MAXIMUM SINGLE END |
| WRENCHING SURFACE SHAPE | 6 POINT SINGLE END INTERNAL |
| DRIVE SURFACE SIZE | 0.760 INCHES MINIMUM AND |
| 0.770 INCHES MAXIMUM SINGLE END |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| FEATURES PROVIDED | MANUAL TOOL |
| SPECIAL MARKINGS | 3-17/32 IN. |