| COUNTERSINK ANGLE | 78.0 DEGREES NOMINAL |
| FASTENER LENGTH | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.226 INCHES NOMINAL |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | NICKEL ALLOY 400 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 7 TYPE |
| SHANK DIAMETER | 0.121 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT |