| EXTENDED WASHER DIAMETER | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM |
| FASTENER LENGTH | 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM |
| HEAD HEIGHT | 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| NONSTANDARD THREAD PITCH DIAMETER | +0.2821 TO 0.2854 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT INTERNAL TEETH |
| WASHER QUANTITY | 1 |
| WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.422 INCHES MINIMUM AND 1.428 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 24 |