| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.720 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 1.900 INCHES NOMINAL |
| GROOVE DIAMETER | 0.477 INCHES MINIMUM AND 0.487 INCHES MAXIMUM |
| HEAD DIAMETER | 1.000 INCHES NOMINAL |
| HEAD HEIGHT | 0.266 INCHES MINIMUM AND 0.296 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8630 OVERALL |
| NOMINAL THREAD DIAMETER | 0.562 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.139 INCHES MINIMUM AND 0.144 INCHES MAXIMUM FIRST HOLE |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.412 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES DESIGNATOR | UNF |