| CHAMFER LENGTH | 0.030 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 59.0 DEGREES MINIMUM AND 61.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.160 INCHES MINIMUM AND 1.220 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.219 INCHES NOMINAL |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-321 ALLOYS 260,270 OR 274 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | COPPER ALLOY 260 OR COPPER ALLOY 270 OR COPPER ALLOY 274 OVERALL |
| SHANK DIAMETER | 0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT WITH TAPERED TIP |
| TIP DIAMETER | 0.078 INCHES NOMINAL |