| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.5000 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.865 INCHES MINIMUM AND |
| 0.885 INCHES MAXIMUM |
| FASTENER LENGTH | 1.595 INCHES MINIMUM AND |
| 1.625 INCHES MAXIMUM |
| MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND |
| 0.752 INCHES MAXIMUM |
| GRIP LENGTH | 0.865 INCHES MINIMUM AND |
| 0.885 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4990 INCHES MINIMUM AND |
| 0.4995 INCHES MAXIMUM |
| SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| 63.0 MICROINCHES GRIP |
| 16.0 MICROINCHES THREADS |
| SPECIFICATION/STANDARD DATA | 80205-NAS678 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |