| EFFECTIVE LENGTH | 0.541 INCHES MINIMUM AND 0.551 INCHES MAXIMUM |
| DIAMETER | 0.3735 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM |
| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER ANGLE | 44.5 DEGREES MINIMUM AND 45.5 DEGREES MAXIMUM |
| FIRST END TAPER LENGTH | 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEIGHT | 0.355 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 416 OVERALL |
| SECOND UNDERCUT DIAMETER | 0.298 INCHES MINIMUM AND 0.308 INCHES MAXIMUM |
| SECOND UNDERCUT WIDTH | 0.060 INCHES MINIMUM AND 0.063 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM |
| STYLE DESIGNATOR | GROOVE |
| SURFACE FINISH | 125.0 MICROINCHES OVERALL |
| UNDERCUT DIAMETER | 0.303 INCHES MINIMUM AND 0.306 INCHES MAXIMUM |
| UNDER HEAD LENGTH | 0.817 INCHES NOMINAL |
| UNDERCUT WIDTH | 0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |