| COUNTERSINK ANGLE | 98.5 DEGREES MINIMUM AND 101.5 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
| GRIP LENGTH | 0.204 INCHES NOMINAL |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| HEAD MAJOR DIAMETER | 0.257 INCHES MINIMUM AND 0.298 INCHES MAXIMUM |
| HEAT TREATMENT | ANNEALED OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-423,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| SHANK DIAMETER | 0.155 INCHES MINIMUM AND 0.159 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT |
| SHEAR STRENGTH | 65000 SINGLE POUNDS PER SQUARE INCH |