| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.495 INCHES NOMINAL |
| FASTENER LENGTH | 1.0575 INCHES NOMINAL |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5663 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5962 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OR |
| AMS 2700 METHOD 1 TYPES 2 OR 8 CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| HEAD STYLE | SPLINE EXTENDED WASHER |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.460 INCHES MINIMUM AND |
| 0.470 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.026 INCHES MINIMUM AND |
| 0.046 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.235 INCHES MINIMUM AND |
| 0.250 INCHES MAXIMUM |
| GRIP LENGTH | 0.5625 INCHES NOMINAL |
| GRIP DIAMETER | 0.2641 INCHES MINIMUM AND |
| 0.2651 INCHES MAXIMUM |
| FEATURES PROVIDED | DRY FILM LUBRICANT |