- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.530 inches minimum and 0.609 inches maximum
- Fastener Length
- 0.796 inches minimum and 0.843 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.172 inches minimum and 0.204 inches maximum
- Width Between Flats
- 0.490 inches minimum and 0.502 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.234 inches minimum and 0.266 inches maximum
- Features Provided
- Finished head
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 140000 pounds per square inch
- Hardness Rating
- 27.0 rockwell C minimum overall and 37.0 rockwell C maximum overall
- Minimum Yield Strength
- 95000 pounds per square inch
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches threads
- Surface Finish
- 63.0 microinches grip
- Material
- Iron alloy 660 overall
- Material Document and Classification
- AMS5731 assn std single material response overall or AMS5732 assn std single material response overall or AMS5737 assn std single material response overall or AMS5734 assn std single material response 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.