| FASTENER LENGTH | 2.5625 INCHES MINIMUM AND 2.5825 INCHES MAXIMUM |
| GRIP LENGTH | 1.9325 INCHES MINIMUM AND 1.9425 INCHES MAXIMUM |
| HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.592 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6415 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| MINIMUM TENSILE STRENGTH | 18900 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.4375 INCHES |
| SHANK DIAMETER | 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 28600 DOUBLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.1895 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY I, 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 | 20 |