| COUNTERSINK ANGLE | 99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| GRIP LENGTH | 0.047 INCHES NOMINAL |
| HEAD MAJOR DIAMETER | 0.411 INCHES MINIMUM AND 0.419 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 5056 OVERALL |
| SHANK DIAMETER | 0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |
| SHEAR STRENGTH | 24000 SINGLE POUNDS PER SQUARE INCH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE FILM OVERALL |