- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.454 inches minimum and 0.484 inches maximum
- Fastener Length
- 3.579 inches minimum and 3.609 inches maximum
- Head Style
- Dished hexagon
- Head Height
- 0.156 inches minimum and 0.171 inches maximum
- Width Between Flats
- 0.492 inches minimum and 0.502 inches maximum
- Hole Diameter
- 0.070 inches minimum and 0.080 inches maximum
- Grip Diameter
- 0.3110 inches minimum and 0.3120 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 3.115 inches minimum and 3.135 inches maximum
- Hole Quantity
- 3
- Hole Type
- Drilled
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Material
- Steel comp E4340 or steel comp 8740 overall
- Surface Treatment
- Cadmium and chromate 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.