| DISTANCE FROM CENTERLINE TO FLAT | 0.234 INCHES NOMINAL |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.098 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 1.188 INCHES NOMINAL |
| HEAD HEIGHT | 0.093 INCHES NOMINAL |
| HEAD DIAMETER | 0.625 INCHES NOMINAL |
| HEAD STYLE | DEE |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES NOMINAL FIRST HOLE |
| SHOULDER DIAMETER | 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHOULDER LENGTH | 0.781 INCHES NOMINAL FIRST SHOULDER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.345 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |