| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 4.500 INCHES NOMINAL |
| HEAD DIAMETER | 1.219 INCHES MINIMUM AND 1.303 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1010 OVERALL |
| MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH |
| NECK LENGTH | 0.491 INCHES MINIMUM AND 0.541 INCHES MAXIMUM |
| NECK WIDTH | 0.750 INCHES MINIMUM AND 0.765 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.750 INCHES |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.750 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 10 |