| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.4375 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.528 INCHES NOMINAL |
| FASTENER LENGTH | 1.388 INCHES MINIMUM AND |
| 1.418 INCHES MAXIMUM |
| MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS4006 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 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 | 0.865 INCHES MINIMUM AND |
| 0.885 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4516 INCHES MINIMUM AND |
| 0.4526 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, CLOSE TOLERANCE |