| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.4375 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.694 INCHES NOMINAL |
| FASTENER LENGTH | 1.179 INCHES MINIMUM AND |
| 1.209 INCHES MAXIMUM |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731,AMS5732,AMS5737,OR AMS5853 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS4006 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | DISHED HEXAGON |
| HEAD HEIGHT | 0.219 INCHES MINIMUM AND |
| 0.234 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.678 INCHES MINIMUM AND |
| 0.690 INCHES MAXIMUM |
| GRIP LENGTH | 0.490 INCHES MINIMUM AND |
| 0.510 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4672 INCHES MINIMUM AND |
| 0.4682 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS6703 THRU 6720 MANUFACTURERS STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,HEX HEAD,CLOSE TOLERANCE,A286 CRES,LONG THREADS,SELF-LOCKING AND NONLOCKING |