| WIDTH BETWEEN FLATS | 0.418 INCHES MINIMUM AND 0.434 INCHES MAXIMUM |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.593 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNJF |
| EXTENDED WASHER THICKNESS | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM |
| FASTENER LENGTH | 3.5155 INCHES MINIMUM AND 3.5455 INCHES MAXIMUM |
| GRIP DIAMETER | 0.3416 INCHES MINIMUM AND 0.3422 INCHES MAXIMUM |
| GRIP LENGTH | 2.928 INCHES MINIMUM AND 2.948 INCHES MAXIMUM |
| HEAD HEIGHT | 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON W/HOLE |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |