| DRIVE SURFACE SIZE | 0.380 INCHES MINIMUM AND 0.385 INCHES MAXIMUM SINGLE END |
| DRIVE END OUTSIDE DIAMETER | 0.750 INCHES NOMINAL |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| FEATURES PROVIDED | MANUAL TOOL |
| OVERALL LENGTH | 1.250 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| WRENCHING END OPENING DEPTH | 0.375 INCHES NOMINAL |
| WRENCHING END OUTSIDE DIAMETER | 1.276 INCHES MINIMUM AND 1.281 INCHES MAXIMUM |
| WRENCHING SURFACE SHAPE | 12 POINT SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 1.006 INCHES MINIMUM AND 1.015 INCHES MAXIMUM SINGLE END |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| SURFACE TREATMENT | PHOSPHATE AND ZINC OVERALL |