| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.688 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 2.875 INCHES NOMINAL |
| HEAD HEIGHT | 0.375 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| HOLE CONFIGURATION STYLE | HEXAGON LONGITUDINAL HOLE |
| HOLE DIAMETER | 0.062 INCHES NOMINAL |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 1 |
| MINIMUM YIELD STRENGTH | 44000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| SHOULDER DIAMETER | 0.7460 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER LENGTH | 2.188 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHANK UNTHREADED HOLE DIAMETER | 0.140 INCHES NOMINAL FIRST HOLE |
| SPECIAL FEATURES | ONE KEYWAY 1 IN. LG BY 0.140 TO 0.145 IN. W BY 0.100 IN. DEEP IN BOTTOM OF SHOULDER W/0.031 IN. BY 45 DEGREE CHAMFER |
| WIDTH BETWEEN FLATS | 1.000 INCHES NOMINAL |
| SURFACE TREATMENT | ZINC AND CHROMATE OR CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.688 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 20 |