| CONCENTRIC HOLE DIAMETER | 0.263 INCHES MINIMUM AND 0.273 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 0.110 INCHES MINIMUM |
| COUNTERBORE DIAMETER | 0.2187 INCHES MINIMUM AND 0.2217 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| FASTENER LENGTH | 1.210 INCHES NOMINAL |
| HEAD DIAMETER | 0.505 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SPECIAL FEATURES | ALSO FURNISHED WITH WIRE 17-7 PH PER AMS 5673; PASSIVATE PER QQ-P-35 TY 1 WIRE CONDITION CH900 PER MIL-H-6875; SURFACE TREATMENT OF UNTHREADED SHANK AND CONICAL SURFACE OF HEAD 32.0; 2 EXTERNAL SLOTS ON FASTERNER |
| STYLE DESIGNATOR | COUNTERBORE UNTHREADED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.780 INCHES MINIMUM AND 0.919 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 24 |