- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 0.293 inches minimum and 0.307 inches maximum
- Fastener Length
- 0.438 inches nominal
- Head Style
- Oval countersunk
- Head Diameter
- 0.257 inches minimum and 0.279 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.138 inches
- Thread Quantity per Inch
- 32
- Countersink Angle
- 80.0 degrees minimum and 82.0 degrees maximum
- Part Name Assigned BY Controlling Agency
- Navy special project
- Screw Material
- Steel
- Screw Surface Treatment
- Chromate or cadmium
- Thread Series Designator
- UNC
- Specification/Standard Data
- 80205-NAS388 professional/industrial association standard
Catalogue data is compiled from public DLA/FLIS sources and is provided for
identification. Availability, condition and certification are confirmed on
quotation. OmniSynk Distribution Services is a stocking distributor.