| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| DRIVE SURFACE SIZE | 0.500 INCHES NOMINAL SINGLE END |
| FEATURES PROVIDED | MANUAL TOOL |
| OVERALL LENGTH | 1.970 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1 CLASS AND A STYLE |
| SPECIAL FEATURES | BOLT CLEARANCE DIA MIN 1.015 IN. |
| SPECIFICATION/STANDARD DATA | 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| WRENCHING SURFACE SHAPE | 12 POINT SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 1.062 INCHES NOMINAL SINGLE END |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| SURFACE TREATMENT | CHROMIUM OVERALL |