- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.350 inches minimum
- Fastener Length
- 1.038 inches nominal
- Head Style
- Double hexagon
- Head Height
- 0.177 inches minimum and 0.197 inches maximum
- Width Between Flats
- 0.492 inches minimum and 0.502 inches maximum
- Grip Diameter
- 0.3108 inches minimum and 0.3117 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches nominal first hole
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.678 inches minimum and 0.698 inches maximum
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 0.820 inches nominal first hole
- Material
- Steel overall
- Thread Series Designator
- UNJF
Identification data is compiled from public DLA/FLIS sources. Supply detail
is from our own records. Availability, condition and certification are
confirmed on quotation. OmniSynk Distribution Services is a stocking distributor.