- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.625 inches minimum
- Fastener Length
- 5.520 inches nominal
- Head Style
- Double hexagon W/hole
- Head Height
- 0.388 inches nominal
- Width Between Flats
- 0.422 inches minimum and 0.437 inches maximum
- Extended Washer Diameter
- 0.639 inches minimum and 0.649 inches maximum
- Extended Washer Thickness
- 0.091 inches nominal
- Grip Diameter
- 0.3735 inches minimum and 0.3745 inches maximum
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 5.395 inches nominal
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell C minimum overall and 43.0 rockwell C maximum overall
- Material
- Steel comp 4150 overall or steel comp 4340 overall
- Surface Treatment
- Cadmium 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.