| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.558 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.060 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FASTENER LENGTH | 0.870 INCHES MINIMUM AND 0.890 INCHES MAXIMUM |
| FIRST DIAMETER FROM HEAD | 0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| HEAD HEIGHT | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON W/HOLE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| PRECIOUS MATERIAL AND LOCATION | THREADS SILVER |
| WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE THREADS |
| SURFACE TREATMENT | SILVER THREADS |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.312 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |