| SPECIAL FEATURES | GRIP IS 0.0156 OVERSIZE. 160 KSI MINIMUM TENSILE. |
| WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.578 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNJF |
| FASTENER LENGTH | 1.3905 INCHES NOMINAL |
| HEAD HEIGHT | 0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.3750 INCHES |
| SHOULDER DIAMETER | 0.3896 INCHES MINIMUM AND 0.3901 INCHES MAXIMUM GRIP |
| SHOULDER LENGTH | 0.8125 INCHES NOMINAL GRIP |