| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.5625 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.594 INCHES NOMINAL |
| FASTENER LENGTH | 6.2815 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 4340 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6349 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS 6389 ASSN STD 2ND MATERIAL RESPONSE OR |
| AMS 6415 ASSN STD 3RD MATERIAL RESPONSE OR |
| AMS 6484 ASSN STD 4TH MATERIAL RESPONSE OR |
| AMS 6322 ASSN STD 5TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.281 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.865 INCHES MINIMUM AND |
| 0.877 INCHES MAXIMUM |
| GRIP LENGTH | 5.6875 INCHES NOMINAL |
| GRIP DIAMETER | 0.5917 INCHES MINIMUM AND |
| 0.5927 INCHES MAXIMUM |
| POINT STYLE | FLAT |
| POINT DIAMETER | 0.5500 INCHES MINIMUM AND |
| 0.5550 INCHES MAXIMUM |