- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.630 in min / 0.690 in max
- Fastener Length
- 1.062 in nominal
- Head Style
- Double hexagon W/hole
- Head Height
- 0.260 in nominal
- Width Between Flats
- 0.250 in nominal
- Extended Washer Diameter
- 0.375 in nominal
- Extended Washer Thickness
- 0.040 in minimum
- Hole Diameter
- 0.047 in nominal
- Nominal Thread Diameter
- 0.190 in
- Grip Length
- 0.372 in min / 0.432 in max
- Hole Quantity
- 4
- Hole Type
- Drilled
- Features Provided
- Finished head
- Thread Quantity per Inch
- 32
- Min Tensile Strength
- 130,000 psi
- Hardness Rating
- 24.0-35.0 Rockwell C
- Min Yield Strength
- 85,000 psi
- Hole Configuration Style
- Double hexagon longitudinal hole
- Surface Finish
- 32.0 microinches (bearing surface, grip, threads)
- Material
- Iron alloy 660 overall
- Material Spec
- AMS 5731
- 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.