- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 0.688 inches minimum and 0.750 inches maximum
- Fastener Length
- 0.719 inches minimum and 0.750 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.238 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
- Minimum Tensile Strength
- 55000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Screw Material
- Copper alloy
- Screw Material Document and Classification
- QQ-B-626 fed spec single material response or QQ-W-321 fed spec single material response
- Thread Series Designator
- UNC
- Nondefinitive Spec/STD Data
- 3 type and ec style
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.