- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.742 inches minimum and 0.792 inches maximum
- Fastener Length
- 3.502 inches minimum and 3.532 inches maximum
- Head Style
- Double hexagon W/hole
- Head Height
- 0.494 inches minimum and 0.514 inches maximum
- Width Between Flats
- 0.553 inches minimum and 0.564 inches maximum
- Extended Washer Diameter
- 0.818 inches minimum and 0.828 inches maximum
- Extended Washer Thickness
- 0.113 inches minimum and 0.133 inches maximum
- Grip Diameter
- 0.4990 inches minimum and 0.4995 inches maximum
- Shank Unthreaded Hole Diameter
- 0.106 inches minimum first hole and 0.111 inches maximum first hole
- Nominal Thread Diameter
- 0.500 inches
- Grip Length
- 2.740 inches minimum and 2.760 inches maximum
- Thread Quantity per Inch
- 20
- Minimum Tensile Strength
- 220000 pounds per square inch
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 3.256 inches minimum first hole and 3.296 inches maximum first hole
- Material
- Steel corrosion resisting overall
- Surface Treatment
- Passivate overall
- Thread Series Designator
- UNJF
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.