- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.454 inches nominal
- Fastener Length
- 1.329 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
- 0.373 inches minimum and 0.374 inches maximum
- 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
- 0.875 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
- 1.146 inches nominal first hole
- Material
- Iron alloy 660 overall
- Material Document and Classification
- Ams 5731 assn std single material response overall or ams 5732 assn std single material response overall or ams 5737 assn std single material response overall or ams 5853 assn std single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- QQ-P-416, tyii, CL2 fed spec single treatment response overall
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS6306 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.