| FASTENER LENGTH | 0.305 INCHES MINIMUM AND 0.319 INCHES MAXIMUM |
| HEAD STYLE | COUNTERSUNK W/ REVERSE CHAMFER |
| HEAD HEIGHT | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
| HOLE DIAMETER | 0.077 INCHES MINIMUM AND 0.083 INCHES MAXIMUM |
| SHANK DIAMETER | 0.118 INCHES MINIMUM AND 0.123 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| HOLE DEPTH | 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 92.0 DEGREES NOMINAL |
| MATERIAL | COPPER ALLOY 220 OR COPPER ALLOY 270 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 12 TYPE AND 2 CLASS AND F GRADE |