| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| DRIVE END OUTSIDE DIAMETER | 0.510 INCHES MAXIMUM |
| DRIVE SURFACE SIZE | 0.250 INCHES NOMINAL SINGLE END |
| FEATURES PROVIDED | MANUAL TOOL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 2 CLASS AND A STYLE AND DS1/4 SIZE AND WS5/32 SIZE |
| OVERALL LENGTH | 0.750 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| WRENCHING END OPENING DEPTH | 0.094 INCHES NOMINAL |
| WRENCHING END OUTSIDE DIAMETER | 0.281 INCHES MAXIMUM |
| WRENCHING SURFACE SHAPE | 12 POINT SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 0.156 INCHES NOMINAL SINGLE END |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| SURFACE TREATMENT | CHROMIUM OVERALL |