| COUNTERSINK ANGLE | 76.0 DEGREES MINIMUM AND 80.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.110 INCHES MINIMUM AND 0.118 INCHES MAXIMUM |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| HEAT TREATMENT | H-14 STRAIN HARDENED, 1/2 HARD OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 1100 OVERALL |
| SHANK DIAMETER | 0.059 INCHES MINIMUM AND 0.064 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT |