| FASTENER LENGTH | 0.375 INCHES NOMINAL |
| HEAD HEIGHT | 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD STYLE | PAN NO. 2 |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1010 OVERALL OR STEEL COMP 1011 OVERALL OR STEEL COMP 1013 OVERALL OR STEEL COMP 1015 OVERALL OR STEEL COMP 1016 OVERALL OR STEEL COMP 1017 OVERALL OR STEEL COMP 1018 OVERALL OR STEEL COMP 1019 OVERALL OR STEEL COMP 1020 OVERALL |
| PRIMARY WASHER MATERIAL THICKNESS | 0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.327 INCHES MINIMUM AND 0.338 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT INTERNAL TEETH |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.313 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNC |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |