| EXTENDED WASHER DIAMETER | 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| FASTENER LENGTH | 0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM |
| GRIP LENGTH | 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM |
| GRIP DIAMETER | 0.3262 INCHES MINIMUM |
| HEAD HEIGHT | 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON W/HOLE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 12 POIINT HEAD |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| WIDTH BETWEEN FLATS | 0.418 INCHES MINIMUM AND 0.434 INCHES MAXIMUM |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.593 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |