| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.673 INCHES MINIMUM AND |
| 0.703 INCHES MAXIMUM |
| FASTENER LENGTH | 3.673 INCHES MINIMUM AND |
| 3.703 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 3140 OR |
| STEEL COMP E4340 OR |
| STEEL COMP 8740 OR |
| STEEL COMP 6150 OR |
| STEEL COMP 3135 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624(CANCELLED) FED SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-8503 MIL SPEC 4TH MATERIAL RESPONSE OR |
| QQ-S-624(CANCELLED) FED SPEC 5TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD DIAMETER | 0.615 INCHES MINIMUM AND |
| 0.625 INCHES MAXIMUM |
| HEAD HEIGHT | 0.343 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.375 INCHES MINIMUM AND |
| 0.378 INCHES MAXIMUM |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.469 INCHES NOMINAL FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND |
| 0.111 INCHES MAXIMUM FIRST HOLE |
| SPECIFICATION/STANDARD DATA | 80205-NAS146 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |