| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.535 INCHES NOMINAL THREADS |
| FASTENER LENGTH | 1.666 INCHES NOMINAL1.666 INCHES NOMINAL |
| HEAD HEIGHT | 0.195 INCHES NOMINAL0.195 INCHES NOMINAL |
| HEAD STYLE | HEXAGONHEXAGON |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| SHOULDER DIAMETER | 0.3742 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER LENGTH | 1.160 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHANK UNTHREADED HOLE DIAMETER | 0.081 INCHES NOMINAL THREADS |
| SPECIAL FEATURES | NOTCHED BETWEEN THREADS AND SHOULDER,0.106WIDEX0.246 DIA. |
| WIDTH BETWEEN FLATS | 0.559 INCHES NOMINAL0.559 INCHES NOMINAL |
| THREAD CLASS | 3A3A |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD LENGTH | 0.400 INCHES NOMINAL0.400 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |