| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 1.1150 INCHES MINIMUM AND |
| 1.1350 INCHES MAXIMUM |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| THREAD LENGTH | 1.0850 INCHES MINIMUM AND |
| 1.1050 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.4375 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| HEAD HEIGHT | 0.4440 INCHES MINIMUM AND |
| 0.4640 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.5000 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.6780 INCHES MINIMUM AND |
| 0.6980 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.2020 INCHES MINIMUM |
| CHAMFER ANGLE | 28.0 DEGREES MINIMUM AND |
| 32.0 DEGREES MAXIMUM |
| GRIP LENGTH | 0.0300 INCHES MINIMUM |
| GRIP DIAMETER | 0.4000 INCHES MINIMUM AND |
| 0.4100 INCHES MAXIMUM |
| SPECIAL FEATURES | NEXT HIGHER ASSEMBLY IS LIFTFAN ASSEMBLY MODULE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, MACHINE, DOUBLE HEXAGON HEAD, P.D. SHANK, 185 KSI |