| COUNTERSINK ANGLE | 118.5 DEGREES MINIMUM AND 121.5 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM |
| HEAD HEIGHT | 0.053 INCHES NOMINAL |
| HEAD STYLE | COUNTERSUNK W/ REVERSE CHAMFER |
| HEAD MAJOR DIAMETER | 0.310 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| HEAT TREATMENT | T-4 SOLUTION HEAT TREATED OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 7050 OVERALL |
| MINIMUM TENSILE STRENGTH | 68000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 58000 POUNDS PER SQUARE INCH |
| SHANK DIAMETER | 0.221 INCHES MINIMUM AND 0.224 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625, TY 2, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |