| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.5000 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.838 INCHES MINIMUM AND |
| 0.888 INCHES MAXIMUM |
| FASTENER LENGTH | 1.473 INCHES MINIMUM AND |
| 1.505 INCHES MAXIMUM |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| HEAD STYLE | DOUBLE HEXAGON W/HOLE |
| HEAD HEIGHT | 0.440 INCHES MINIMUM AND |
| 0.460 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.547 INCHES MINIMUM AND |
| 0.562 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.922 INCHES MINIMUM AND |
| 0.932 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.032 INCHES MINIMUM AND |
| 0.062 INCHES MAXIMUM |
| GRIP LENGTH | 0.615 INCHES MINIMUM AND |
| 0.635 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4985 INCHES MINIMUM AND |
| 0.4995 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS14181-08010L |