- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.668 inches minimum and 0.698 inches maximum
- Fastener Length
- 2.783 inches minimum and 2.833 inches maximum
- Head Style
- Flush
- Head Diameter
- 0.605 inches minimum and 0.625 inches maximum
- Head Height
- 0.195 inches nominal
- Grip Diameter
- 0.4360 inches minimum and 0.4370 inches maximum
- Internal Drive Style
- Offset cruciform (torque set)
- Nominal Thread Diameter
- 0.438 inches
- Grip Length
- 2.115 inches minimum and 2.135 inches maximum
- Thread Quantity per Inch
- 20
- Minimum Tensile Strength
- 220000 pounds per square inch
- Hardness Rating
- 46.0 rockwell C minimum overall and 50.0 rockwell C maximum overall
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- Steel comp H11 overall
- Material Document and Classification
- Ams 6487 assn std single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- Nas 672 assn std single treatment 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.