| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.250 INCHES NOMINAL |
| FEATURES PROVIDED | CASEHARDENED |
| HEAD DIAMETER | 0.359 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1524 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | CS TYPE AND 2S STYLE |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.190 INCHES |
| NONMACHINE THREAD STYLE | DOUBLE FLUTE (TYPE F) |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |