| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HEAD DIAMETER | 0.340 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 410 OR STEEL COMP 420 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | D TYPE OR F TYPE OR G TYPE OR T TYPE |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.190 INCHES |
| SURFACE TREATMENT | PASSIVATE OVERALL |