- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 0.220 inches minimum
- Fastener Length
- 1.610 inches minimum and 1.640 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.180 inches minimum and 0.200 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.099 inches
- Thread Quantity per Inch
- 48
- Minimum Tensile Strength
- 170000 pounds per square inch
- Countersink Angle
- 80.0 degrees minimum and 82.0 degrees maximum
- Material
- Steel corrosion resisting overall
- Material Document and Classification
- 71321A286 mfr ref single material response overall
- Surface Treatment
- Passivate overall
- Thread Series Designator
- UNC
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.