| FASTENER LENGTH | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM |
| HEAD HEIGHT | 0.069 INCHES MINIMUM AND 0.079 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM |
| HEAD STYLE | FLAT/TINNER'S |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/1,HI4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 1100 OVERALL |
| SHANK DIAMETER | 0.185 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |