| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.170 INCHES NOMINAL ALL HOLES |
| FASTENER LENGTH | 2.8075 INCHES NOMINAL |
| GRIP DIAMETER | 0.2493 INCHES NOMINAL |
| GRIP LENGTH | 2.4375 INCHES NOMINAL |
| HEAD HEIGHT | 0.125 INCHES NOMINAL |
| HEAD STYLE | DISHED HEXAGON |
| HOLE CONFIGURATION STYLE | HEXAGON CORNERS |
| HOLE DIAMETER | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM |
| HOLE QUANTITY | 3 |
| HOLE TYPE | DRILLED |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731,5732,5737, OR 5853 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.081 INCHES NOMINAL ALL HOLES |
| WIDTH BETWEEN FLATS | 0.429 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.370 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |