| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SURFACE TREATMENT | SILVER OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | NOT RATED |
| NUT STYLE | A12 HEXAGON |
| NUT HEIGHT | 0.312 INCHES MINIMUM AND 0.360 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| BEARING SURFACE TYPE | CHAMFERED |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| COUNTERSINK ANGLE | 88.0 DEGREES NOMINAL NUT |
| TEMP RATING | 1200.0 DEG FAHRENHEIT NOMINAL |
| III PRECIOUS MATERIAL | SILVER |
| III PRECIOUS MATERIAL AND LOCATION | ALL SURFACES SILVER |
| III BEARING SURFACE FINISH | 125.0 MICROINCHES |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS20500-524 |