| COUNTERSINK ANGLE | 92.0 DEGREES NOMINAL |
| FASTENER LENGTH | 0.550 INCHES MINIMUM AND 0.574 INCHES MAXIMUM |
| HEAD HEIGHT | 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM |
| HEAD STYLE | COUNTERSUNK W/ REVERSE CHAMFER |
| HEAD MAJOR DIAMETER | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM |
| HOLE DEPTH | 0.134 INCHES MINIMUM AND 0.144 INCHES MAXIMUM |
| HOLE DIAMETER | 0.118 INCHES MINIMUM AND 0.124 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-321,ALLOY 220 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321,TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER ALLOY 220 OR COPPER ALLOY 270 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 12 TYPE AND 2 CLASS AND F GRADE |
| SHANK DIAMETER | 0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
| SHANK STYLE | TUBULAR |
| SHEAR STRENGTH | 35000 SINGLE POUNDS PER SQUARE INCH |