| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.133 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.233 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.560 INCHES NOMINAL |
| EXTENDED WASHER THICKNESS | 0.120 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| FASTENER LENGTH | 1.600 INCHES NOMINAL |
| FIRST DIAMETER FROM HEAD | 0.352 INCHES MINIMUM AND 0.358 INCHES MAXIMUM |
| HEAD HEIGHT | 0.380 INCHES NOMINAL |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SECOND DIAMETER FROM HEAD | 0.374 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| THIRD DIAMETER FROM HEAD | 0.236 INCHES MINIMUM AND 0.246 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.357 INCHES MINIMUM AND 0.377 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |