| MATERIAL | STEEL COMP E4340 OR |
| STEEL COMP 4140 OR |
| STEEL COMP 8740 OVERALL |
| 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 |
| SURFACE TREATMENT | CADMIUM OR |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY 2, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| SHEAR STRENGTH | 108000 SINGLE POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.0590 INCHES MINIMUM AND |
| 0.0690 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.3870 INCHES MINIMUM AND |
| 0.4120 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| FASTENER LENGTH | 1.8850 INCHES MINIMUM AND |
| 1.9050 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND |
| 0.0967 INCHES MAXIMUM |
| SHANK DIAMETER | 0.2485 INCHES MINIMUM AND |
| 0.2495 INCHES MAXIMUM |
| GRIP LENGTH | 1.4950 INCHES MINIMUM AND |
| 1.5100 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 28 |
| THREAD DIRECTION | RIGHT-HAND |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |