- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.438 inches nominal
- Fastener Length
- 0.735 inches minimum and 0.765 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
- Grip Diameter
- 0.311 inches minimum and 0.312 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.312 inches nominal
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Material
- Iron alloy 660 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.