| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 3.000 INCHES NOMINAL |
| HEAD DIAMETER | 0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| HEAD HEIGHT | 0.153 INCHES NOMINAL |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREWS, MACHINE, FLAT HEAD, TYPE I CROSS RECESS |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | ASME B18.6.3 UNHARDENED MACHINE SCREW NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM F1941, ZINC COATING FE/ZN, TYPE 3A NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE |
| SCREW MATERIAL | STEEL |
| SCREW SURFACE TREATMENT | ZINC |
| SPECIFICATION/STANDARD DATA | 05047-ASME B18.24-2023 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.750 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |