| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.781 INCHES MINIMUM AND 0.812 INCHES MAXIMUM |
| HEAD DIAMETER | 0.340 INCHES MINIMUM AND 0.380 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL | STEEL COMP 1022 OVERALL |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.017 INCHES NOMINAL |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.645 INCHES MINIMUM AND 0.665 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | DOME INTERNAL TEETH |
| SECONDARY WASHER MATERIAL THICKNESS | 0.017 INCHES NOMINAL |
| WASHER QUANTITY | 1 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.656 INCHES MINIMUM AND 0.687 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 32 |