| COUNTERSINK ANGLE | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| HEAD HEIGHT | 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM |
| HEAD STYLE | COUNTERSUNK W/ REVERSE CHAMFER |
| HEAD MAJOR DIAMETER | 0.308 INCHES MINIMUM AND 0.318 INCHES MAXIMUM |
| HOLE DEPTH | 0.104 INCHES MINIMUM AND 0.114 INCHES MAXIMUM |
| HOLE DIAMETER | 0.091 INCHES MINIMUM AND 0.097 INCHES MAXIMUM |
| MATERIAL | COPPER ALLOY 220 OR COPPER ALLOY 270 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 12 TYPE AND 2 CLASS AND F GRADE |
| SHANK DIAMETER | 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM |
| SHANK STYLE | TUBULAR |
| SHEAR STRENGTH | 35000 SINGLE POUNDS PER SQUARE INCH |