| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.366 INCHES MINIMUM AND 1.416 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 1.500 INCHES MINIMUM AND 1.530 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |
| GRIP LENGTH | 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM |
| HEAD HEIGHT | 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM |
| HEAD STYLE | DISHED HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.438 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE |
| SPECIAL FEATURES | TW GROOVES ON SHANK |
| WIDTH BETWEEN FLATS | 0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.428 INCHES MINIMUM AND 0.478 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 20 |