| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.659 INCHES NOMINAL |
| FASTENER LENGTH | 1.034 INCHES MINIMUM AND |
| 1.064 INCHES MAXIMUM |
| MATERIAL | STEEL COMP H11 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837,TYPE 2,CLASS MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND |
| 50.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| HEAD STYLE | SPLINE EXTENDED WASHER |
| HEAD HEIGHT | 0.337 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.691 INCHES MINIMUM AND |
| 0.701 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.044 INCHES MINIMUM AND |
| 0.064 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.423 INCHES MINIMUM AND |
| 0.438 INCHES MAXIMUM |
| GRIP LENGTH | 0.365 INCHES MINIMUM AND |
| 0.385 INCHES MAXIMUM |
| GRIP DIAMETER | 0.3735 INCHES MINIMUM AND |
| 0.3745 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, STEEL, 220 KSI FTU, 450 DEGREES FAHRENHEIT, EXTERNAL WRENCHING, SPLINE DRIVE, FLANGED HEAD |