| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| HEAD DIAMETER | 0.300 INCHES MINIMUM AND 0.332 INCHES MAXIMUM |
| HEAD HEIGHT | 0.084 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | SLOT |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,MACHINE,FLAT COUNTERSUNK HEAD,SLOTTED,COPPER-SILICON ALLOY,UNC-2A,NONMAGNETIC |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B98/B98M NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | COPPER ALLOY 651 |
| SPECIFICATION/STANDARD DATA | 80205-NAS-16218 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |