| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.516 INCHES NOMINAL FIRST HOLE |
| BOTTOM COUNTERSINK DIAMETER | 0.165 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 150.0 DEGREES NOMINAL |
| FASTENER LENGTH | 0.621 INCHES MINIMUM AND 0.636 INCHES MAXIMUM |
| HEAD HEIGHT | 0.134 INCHES MINIMUM AND 0.169 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON COUNTERSUNK |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL | STEEL COMP E4340 OVERALL OR STEEL COMP 4340 OVERALL |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.038 INCHES MINIMUM FIRST HOLE AND 0.043 INCHES MAXIMUM FIRST HOLE |
| SHOULDER DIAMETER | 0.165 INCHES MINIMUM FIRST SHOULDER AND 0.170 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 0.100 INCHES MINIMUM FIRST SHOULDER AND 0.105 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SPECIAL FEATURES | UNDERCUT FOR THREAD RELIEF |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES DESIGNATOR | UNC |
| WIDTH BETWEEN FLATS | 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |