| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.5 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.284 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 7050 OVERALL |
| SHANK DIAMETER | 0.157 INCHES MINIMUM AND 0.159 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |
| SURFACE TREATMENT | ANODIZE OVERALL |