| DRIVE END HEAD THICKNESS | 1.250 INCHES NOMINAL |
| DRIVE END OUTSIDE DIAMETER | 1.578 INCHES NOMINAL |
| DRIVE SURFACE SIZE | 1.188 INCHES NOMINAL SECOND END |
| DRIVE END SHAPE | SQUARE SINGLE END EXTERNAL |
| HARDNESS RATING | 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 5.500 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 DRIVE SURFACE |
| WRENCHING END HEAD THICKNESS | 1.250 INCHES NOMINAL |
| WRENCHING END OUTSIDE DIAMETER | 1.580 INCHES NOMINAL |
| WRENCHING SURFACE SHAPE | SPLINE SINGLE END EXTERNAL |
| WRENCHING SURFACE SIZE | 1.062 INCHES NOMINAL FIRST END |
| STYLE DESIGNATOR | BOX END |
| SURFACE TREATMENT | OXIDE OR PHOSPHATE OVERALL |