| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH |
| HEAD STYLE | TEE NO. 4 |
| HEAD LENGTH | 0.880 INCHES NOMINAL |
| TEE BOLT CYLINDRICAL HEAD DIAMETER | 0.522 INCHES MAXIMUM |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 00624 |
| DESIGN CONTROL REFERENCE | 19886-88-350 |