| BORE STYLE | HEX BOTH ENDS |
| COUNTERBORE NOMINAL DIAMETER | 0.500 INCHES BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 0.296 INCHES BOTH ENDS |
| FACE TYPE | STRAIGHT |
| FACE NOMINAL WIDTH | 0.781 INCHES |
| HARDNESS RATING | 0.010 ROCKWELL SUPERFICIAL 15-N NOMINAL OVERALL |
| HELIX ANGLE | 20.6640 DEGREES |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1018 OVERALL |
| PITCH DIAMETER | 0.6670 INCHES MINIMUM AND 0.6720 INCHES MAXIMUM |
| NOMINAL OUTSIDE DIAMETER | 0.797 INCHES |
| NOMINAL WIDTH ACROSS FLATS | 0.382 INCHES BOTH ENDS |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | HUBLESS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | -C-16232 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| THREAD FORM DIRECTION | LEFT-HAND |
| THREAD FORM QUANTITY | 1 |