| MATERIAL | STEEL COMP 8740 OR |
| STEEL COMP E4340 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SHEAR STRENGTH | 108000 SINGLE POUNDS PER SQUARE INCH |
| HEAD STYLE | FLUSH COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.6310 INCHES MINIMUM AND |
| 0.6980 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND |
| 101.0 DEGREES MAXIMUM |
| SHANK STYLE | PIN-RIVET, TAPERED, THREADED |
| FASTENER LENGTH | 1.4580 INCHES MINIMUM AND |
| 1.4830 INCHES MAXIMUM |
| SHANK DIAMETER | 0.3812 INCHES NOMINAL |
| TIP DIAMETER | 0.3638 INCHES NOMINAL |
| GRIP LENGTH | 1.0520 INCHES MINIMUM AND |
| 1.0670 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 24 |
| THREAD DIRECTION | RIGHT-HAND |
| LUBRICATION | CETYL ALCOHOL |