| FASTENER LENGTH | 0.375 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 DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A575 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| MATERIAL | STEEL COMP 1010 FASTENER |
| MATERIAL | STEEL COMP 1020 PRIMARY WASHER |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.109 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.392 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT |
| SPECIAL FEATURES | WASHER CONSISTS OF STEEL SHELL WITH BONDED NEOPRENE CUSHION,AND PAINTED AREA BLACK COLOR NO. 37038 FED STD NO. 595 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 1,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT | PAINT HEAD |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.266 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 32 |
| WASHER QUANTITY | 1 |