- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.995 inches minimum and 1.045 inches maximum
- Fastener Length
- 2.005 inches minimum and 2.035 inches maximum
- Head Style
- Spline extended washer
- Head Height
- 0.552 inches minimum and 0.572 inches maximum
- Extended Washer Diameter
- 1.153 inches minimum and 1.163 inches maximum
- Extended Washer Thickness
- 0.080 inches minimum and 0.100 inches maximum
- Grip Diameter
- 0.6230 inches minimum and 0.6240 inches maximum
- Head Minor Diameter
- 0.673 inches minimum and 0.688 inches maximum
- Nominal Thread Diameter
- 0.625 inches
- Grip Length
- 0.990 inches minimum and 1.010 inches maximum
- Thread Quantity per Inch
- 18
- Minimum Tensile Strength
- 220000 pounds per square inch
- Hardness Rating
- 46.0 rockwell C minimum overall and 50.0 rockwell C maximum overall
- Material
- Steel comp H11 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.