- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.371 inches minimum and 0.508 inches maximum
- Fastener Length
- 1.636 inches minimum and 1.681 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.337 inches minimum and 0.387 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 248.0 brinell standard minimum and 321.0 brinell standard maximum
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Screw Material
- Nickel alloy X-750
- Screw Surface Treatment
- Cadmium
- Thread Series Designator
- UNF
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.