| COUNTERSINK ANGLE | 99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.4275 INCHES MINIMUM AND 0.4475 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.282 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| MATERIAL | ALUMINUM ALLOY 5056 OVERALL |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |
| SHANK DIAMETER | 0.155 INCHES MINIMUM AND 0.159 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625, TY II, CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |