| FASTENER LENGTH | 0.438 INCHES NOMINAL |
| HEAD DIAMETER | 0.260 INCHES MAXIMUM |
| HEAD HEIGHT | 0.103 INCHES MAXIMUM |
| HEAD STYLE | ROUND |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL | STEEL COMP 1010 BEARING SURFACE OF HEAD |
| MATERIAL | STEEL COMP 1020 PRIMARY WASHER |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| PRIMARY WASHER STYLE | RECESSED |
| SECONDARY WASHER STYLE | FLAT |
| SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | NOT IDENTICAL |
| SPECIAL FEATURES | WASHER CONSISTS OF STEEL SHELL WITH BOWDED NEOPRENE CUSHION |
| WASHER QUANTITY | 2 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 595,NO. 36231 FED STD SINGLE TREATMENT RESPONSE SIDES OF HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 595,NO. 36231 FED STD SINGLE TREATMENT RESPONSE TOP OF HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 595,NO. 36231 FED STD SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT | PAINT PRIMARY WASHER |
| SURFACE TREATMENT | PAINT SIDES OF HEAD |
| SURFACE TREATMENT | PAINT TOP OF HEAD |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.329 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNC |