- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.578 inches nominal
- Fastener Length
- 3.453 inches nominal
- Head Style
- Dished hexagon
- Head Height
- 0.188 inches minimum and 0.203 inches maximum
- Width Between Flats
- 0.553 inches minimum and 0.564 inches maximum
- Grip Diameter
- 0.373 inches minimum and 0.374 inches maximum
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 2.865 inches minimum and 2.885 inches maximum
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 180000 pounds per square inch
- Part Name Assigned BY Controlling Agency
- Bolt shear hexagon head 108 ksi shear long thread
- Material
- Steel comp 4140 overall or steel comp E4340 overall or steel comp 8740 overall
- Surface Treatment
- Cadmium overall 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.