| DRIVE END OUTSIDE DIAMETER | 0.683 INCHES NOMINAL |
| DRIVE END SHAPE | SQUARE SECOND END INTERNAL |
| DRIVE SURFACE SIZE | 0.250 INCHES NOMINAL SECOND END |
| OVERALL LENGTH | 0.750 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 1 CLASS AND A STYLE |
| WRENCHING END OPENING DEPTH | 0.219 INCHES NOMINAL |
| WRENCHING END OUTSIDE DIAMETER | 0.683 INCHES NOMINAL |
| WRENCHING SURFACE SHAPE | HEXAGON FIRST END INTERNAL |
| WRENCHING SURFACE SIZE | 0.438 INCHES NOMINAL FIRST END |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| SURFACE TREATMENT | CHROMIUM OVERALL |