| COUNTERSINK ANGLE | 118.5 DEGREES MINIMUM AND 121.5 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM |
| HEAD HEIGHT | 0.051 INCHES NOMINAL |
| HEAD MAJOR DIAMETER | 0.258 INCHES MAXIMUM |
| HEAD STYLE | COUNTERSUNK W/ REVERSE CHAMFER |
| HEAT TREATMENT | T-73 SOLUTION HEAT TREATED OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430,ALLOY 7050 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY OVERALL |
| MINIMUM TENSILE STRENGTH | 68000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 58000 POUNDS PER SQUARE INCH |
| SHANK DIAMETER | 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |
| SHEAR STRENGTH | 41000 SINGLE POUNDS PER SQUARE INCH |