| SHANK STYLE | STUMP |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PROTRUDING SHEAR HEAD ALLOY STEEL 1/16 INCH GRIP VARIATION,1/64 INCH OVERSIZE |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 28 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| FASTENER LENGTH | 1.4275 INCHES MINIMUM AND 1.4475 INCHES MAXIMUM |
| GRIP LENGTH | 1.4325 INCHES MINIMUM AND 1.4425 INCHES MAXIMUM |
| HEAD HEIGHT | 0.058 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| HEAD STYLE | STRAIGHT PAN |
| HEAD MAJOR DIAMETER | 0.387 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| LUBRICATION | CETYL ALCOHOL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| SHANK DIAMETER | 0.2641 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| TIP DIAMETER | 0.122 INCHES MINIMUM AND 0.142 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2,AND CETYL ALCOHOL LUBE PER HI-SHEAR SPEC 305 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |