- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.500-0.578 inches
- Fastener Length
- 1.328-1.375 inches
- Head Style
- Hexagon
- Head Height
- 0.172-0.204 inches
- Width Between Flats
- 0.490-0.502 inches
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.797-0.828 inches
- Features Provided
- Finished head
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 125000 PSI
- Hardness Rating
- 26.0-32.0 Rockwell C
- Material
- Steel comp 431 overall
- Material Spec
- MIL-S-18732
- Surface Treatment
- Passivate overall
- 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.