- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.367 inches minimum and 0.438 inches maximum
- Fastener Length
- 0.438 inches nominal
- Head Style
- PAN
- Head Diameter
- 0.473 inches minimum and 0.492 inches maximum
- Head Height
- 0.162 inches minimum and 0.175 inches maximum
- Internal Drive Style
- Torque set
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 140000 pounds per square inch
- Hardness Rating
- 248.0 brinell standard minimum and 321.0 brinell standard maximum
- Screw Material
- Iron alloy 660
- Screw Material Document and Classification
- Ams 5735 assn std single material response
- Screw Surface Treatment
- Passivate
- Screw Surface Treatment Document and Classification
- MIL-S-5002 mil spec single treatment response
- 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.