| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 4.000 INCHES NOMINAL4.000 INCHES NOMINAL |
| HEAD DIAMETER | 0.485 INCHES MINIMUM AND 0.485 INCHES MINIMUM AND 0.544 INCHES MAXIMUM0.544 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNKFLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1CROSS RECESS TYPE 1 |
| MATERIAL | STEEL OVERALL |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.268 INCHES0.268 INCHES |
| NONMACHINE THREAD STYLE | WOOD SCREW (TYPE WD)WOOD SCREW (TYPE WD) |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALLQQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM AND CADMIUM AND CHROMATE OVERALLCHROMATE OVERALL |