| COUNTERSINK ANGLE | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.109 INCHES MINIMUM AND 1.141 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.455 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| MATERIAL | COPPER ALLOY 220 OR COPPER ALLOY 270 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 10 TYPE AND F GRADE |
| SHANK DIAMETER | 0.244 INCHES MINIMUM AND 0.253 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT |
| SHEAR STRENGTH | 35000 SINGLE POUNDS PER SQUARE INCH |