| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.593 INCHES NOMINAL |
| FASTENER LENGTH | 0.766 INCHES MINIMUM AND |
| 0.796 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 | AMS 2700,METHOD 1,TYPE 2 OR 8 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| HEAD STYLE | DOUBLE HEXAGON W/HOLE |
| HEAD HEIGHT | 0.290 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.413 INCHES MINIMUM AND |
| 0.434 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.575 INCHES MINIMUM AND |
| 0.585 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.050 INCHES NOMINAL |
| HOLE CONFIGURATION STYLE | DOUBLE HEXAGON LONGITUDINAL HOLE |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 4 |
| HOLE DIAMETER | 0.050 INCHES MINIMUM AND |
| 0.060 INCHES MAXIMUM |
| GRIP LENGTH | 0.178 INCHES MINIMUM AND |
| 0.198 INCHES MAXIMUM |
| GRIP DIAMETER | 0.3115 INCHES MINIMUM AND |
| 0.3120 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 43999-NAS111-0067 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,12 POINT HEAD,220 KSI MIN TENSILE,NICKEL ALLOY 718 |