| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.094 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.375 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.646 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.141 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| FASTENER LENGTH | 0.906 INCHES NOMINAL |
| FIRST DIAMETER FROM HEAD | 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM |
| HEAD HEIGHT | 0.375 INCHES NOMINAL |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NONSTANDARD THREAD PITCH DIAMETER | +0.4071 TO 0.4104 INCHES |
| SECOND DIAMETER FROM HEAD | 0.430 INCHES MINIMUM AND 0.434 INCHES MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.531 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| WIDTH BETWEEN FLATS | 0.438 INCHES NOMINAL |