| FASTENER LENGTH | 1.662 INCHES NOMINAL1.662 INCHES NOMINAL |
| HANDLE LENGTH | 1.1875 INCHES NOMINAL1.1875 INCHES NOMINAL |
| HEAD DIAMETER | 0.394 INCHES NOMINAL0.394 INCHES NOMINAL |
| HEAD HEIGHT | 0.312 INCHES NOMINAL0.312 INCHES NOMINAL |
| HEAD STYLE | UNDERCUT PAN NO. 2UNDERCUT PAN NO. 2 |
| INTERNAL DRIVE STYLE | HEXAGONHEXAGON |
| MATERIAL | STEEL OVERALLSTEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES0.3125 INCHES |
| WIDTH ACROSS FLATS | 0.2190 INCHES MINIMUM AND 0.2190 INCHES MINIMUM AND 0.2210 INCHES MAXIMUM0.2210 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALLCADMIUM OVERALL |
| THREAD CLASS | 3A3A |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD LENGTH | 0.052 INCHES NOMINAL0.052 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 2424 |
| THREAD SERIES DESIGNATOR | UNFUNF |