- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.750-0.810 inches
- Fastener Length
- 1.000 inches nominal
- Head Style
- Double hexagon W/hole
- Head Height
- 0.330 inches nominal
- Width Between Flats
- 0.305-0.313 inches
- Extended Washer Diameter
- 0.438 inches nominal
- Extended Washer Thickness
- 0.060-0.070 inches
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.190-0.250 inches
- Features Provided
- Finished head
- Thread Quantity per Inch
- 28
- Hardness Rating
- 42.0-46.0 Rockwell C
- Surface Finish
- 32.0 microinches (bearing surface, grip, threads)
- Material
- Steel comp 601 overall
- Material Spec
- AMS 6304
- Surface Treatment
- Nickel overall and cadmium overall
- Surface Treatment Spec
- AMS 2416
- 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.