- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 1.036 inches minimum and 1.076 inches maximum
- Fastener Length
- 3.921 inches minimum and 3.941 inches maximum
- Head Style
- Double hexagon W/hole
- Head Height
- 0.701 inches minimum and 0.721 inches maximum
- Width Between Flats
- 0.812 inches nominal
- Extended Washer Diameter
- 1.220 inches minimum and 1.230 inches maximum
- Extended Washer Thickness
- 0.178 inches nominal
- Grip Diameter
- 0.7480 inches minimum and 0.7490 inches maximum
- Nominal Thread Diameter
- 0.750 inches
- Grip Length
- 2.865 inches minimum and 2.885 inches maximum
- Thread Quantity per Inch
- 16
- 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 4340 overall or steel comp 8740 overall or steel comp 6150 overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416, ty 2, cl 2 fed spec all treatment responses 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.