| COUNTERSINK HEIGHT | 0.039 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| HEAD HEIGHT | 0.003 INCHES MINIMUM AND 0.005 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| HEAD STYLE | UNDERSIZED OVAL COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.248 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL |
| SHANK DIAMETER | 0.155 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |