- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.454 inches nominal
- Fastener Length
- 3.391 inches nominal
- Head Style
- Dished hexagon
- Head Height
- 0.188 inches minimum and 0.203 inches maximum
- Width Between Flats
- 0.554 inches minimum and 0.564 inches maximum
- Grip Diameter
- 0.374 inches nominal
- Shank Unthreaded Hole Diameter
- 0.106 inches minimum first hole and 0.116 inches maximum first hole
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 2.937 inches nominal
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 0.183 inches nominal first hole
- Material
- Steel corrosion resisting overall
- Material Document and Classification
- AMS5731 assn std 1ST material response overall or AMS5732 assn std 2ND material response overall or AMS5737 assn std 3RD material response overall
- Surface Treatment
- Passivate overall
- Surface Treatment Document and Classification
- NAS4003 assn std all treatment responses 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.