| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 2.000 INCHES NOMINAL |
| HEAD DIAMETER | 1.063 INCHES MINIMUM AND 1.147 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA307-47T ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NECK LENGTH | 0.416 INCHES MINIMUM AND 0.461 INCHES MAXIMUM |
| NECK WIDTH | 0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.773 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 11 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |