| COUNTERSINK ANGLE | 81.0 DEGREES NOMINAL |
| FASTENER LENGTH | 5.000 INCHES NOMINAL |
| HARDNESS RATING | 22.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 1.406 INCHES MINIMUM AND 1.512 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1035 OVERALL |
| MINIMUM YIELD STRENGTH | 90000 POUNDS PER SQUARE INCH |
| NECK LENGTH | 0.563 INCHES MINIMUM AND 0.626 INCHES MAXIMUM |
| NECK WIDTH | 0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.875 INCHES |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 2.000 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 9 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |