| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 5.363 INCHES MINIMUM AND 5.393 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 5.478 INCHES MINIMUM AND 5.498 INCHES MAXIMUM |
| HEAD HEIGHT | 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| LOCKING FEATURE | DETENT RING GRIP |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.6235 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 2.310 INCHES MINIMUM AND 2.330 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.311 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |