- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.553 inches minimum and 0.603 inches maximum
- Fastener Length
- 1.001 inches minimum and 1.031 inches maximum
- 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
- Locking Feature
- Strip threads
- Grip Diameter
- 0.3740 inches minimum and 0.3745 inches maximum
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 0.428 inches minimum and 0.448 inches maximum
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 140000 pounds per square inch
- Hardness Rating
- 24.0 rockwell C minimum fastener and 35.0 rockwell C maximum fastener
- Minimum Yield Strength
- 85000 pounds per square inch
- Surface Finish
- 32.0 microinches threads
- Surface Finish
- 63.0 microinches bearing surface of head
- Surface Finish
- 63.0 microinches grip
- Material
- Iron alloy 660 fastener
- Material
- Plastic polyamide locking feature
- Material Document and Classification
- Ams 5732 assn std single material response fastener
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS1226 professional/industrial association standard
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.