| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| FEATURES PROVIDED | O RING |
| HEAD DIAMETER | 0.225 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | FLATHEAD C'SUNK, RECESSED |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.1120 INCHES |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700 ASSN STD ALL TREATMENT RESPONSES |
| SPECIAL FEATURES | ORING MATERIAL IS ETHYLENE PROPYLENE, SERVICE TEMP -65 DEGREE FAHRENHEIT |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES DESIGNATOR | UNC |