| COUNTERSINK ANGLE | 99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM |
| COUNTERSINK HEIGHT | 0.060 INCHES NOMINAL |
| FASTENER LENGTH | 0.500 INCHES NOMINAL |
| HEAD HEIGHT | 0.004 INCHES MINIMUM AND 0.006 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.316 INCHES MINIMUM AND 0.326 INCHES MAXIMUM |
| HEAD STYLE | UNDERSIZED OVAL COUNTERSUNK |
| MATERIAL | ALUMINUM ALLOY 2017 OVERALL |
| SHANK DIAMETER | 0.249 INCHES MINIMUM AND 0.252 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 CLASS 1A YELLOW MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMATE OVERALL |