| COUNTERSINK ANGLE | 98.5 DEGREES MINIMUM AND 101.5 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| GRIP LENGTH | 0.459 INCHES MINIMUM AND 0.479 INCHES MAXIMUM |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| HEAD MAJOR DIAMETER | 0.323 INCHES MINIMUM AND 0.365 INCHES MAXIMUM |
| HEAT TREATMENT | ANNEALED OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-423 UNS C10100 OR C10200 OR C10400 OR C10500 OR C10700 OR C11000 OR C11300 OR C11400 OR C11600 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER OVERALL |
| SHANK DIAMETER | 0.186 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| SHANK STYLE | STRAIGHT W/RADIUS CHAMFERED TIP |
| SHEAR STRENGTH | 27000 SINGLE POUNDS PER SQUARE INCH |
| SPECIFICATION/STANDARD DATA | 96906-MS20427 GOVERNMENT STANDARD AND 88044-AN420/CANCELED/ GOVERNMENT STANDARD AND 88044-AN427/CANCELED/ GOVERNMENT STANDARD |