| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 1.918 INCHES MINIMUM AND |
| 1.948 INCHES MAXIMUM |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| THREAD LENGTH | 0.745 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.4375 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.234 INCHES MINIMUM AND |
| 0.266 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.679 INCHES MINIMUM AND |
| 0.689 INCHES MAXIMUM |
| GRIP LENGTH | 1.173 INCHES MINIMUM AND |
| 1.203 INCHES MAXIMUM |
| GRIP DIAMETER | 0.648 INCHES NOMINAL |
| SPECIAL FEATURES | THE MATERIAL IS CLEAN AND PASSIVATE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT MACHINE HEXAGON HEAD |