| FASTENER LENGTH | 2.590 INCHES MINIMUM AND 2.610 INCHES MAXIMUM |
| GRIP LENGTH | 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM |
| HEAD HEIGHT | 0.228 INCHES MINIMUM AND 0.238 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.955 INCHES MINIMUM AND 0.990 INCHES MAXIMUM |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-5626 ASSN STD 2ND MATERIAL RESPONSE OR MIL-S-6049 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| MINIMUM TENSILE STRENGTH | 41000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.625 INCHES |
| SHANK DIAMETER | 0.6699 INCHES MINIMUM AND 0.6709 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 67200 DOUBLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.2520 INCHES MINIMUM AND 0.2555 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY II, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 18 |