| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.130 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 3.280 INCHES NOMINAL |
| HEAD HEIGHT | 0.300 INCHES NOMINAL |
| HEAD DIAMETER | 0.750 INCHES NOMINAL |
| HEAD STYLE | ROUND W/WRENCH FLATS |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 321 OVERALL |
| NOMINAL THREAD DIAMETER | 0.438 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.471 INCHES MINIMUM AND 0.472 INCHES MAXIMUM SECOND SHOULDER |
| SHOULDER DIAMETER | 0.495 INCHES MINIMUM AND 0.499 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND ALL SHOULDERS |
| SHOULDER LENGTH | 1.370 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER LENGTH | 1.380 INCHES NOMINAL SECOND SHOULDER |
| WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 2A |
| THREAD LENGTH | 0.430 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 20 |