- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.709 inches minimum and 0.759 inches maximum
- Fastener Length
- 2.219 inches minimum and 2.249 inches maximum
- Head Style
- Spline extended washer
- Head Height
- 0.263 inches minimum and 0.303 inches maximum
- Width Between Flats
- 0.448 inches minimum and 0.455 inches maximum
- Extended Washer Diameter
- 0.691 inches minimum and 0.701 inches maximum
- Extended Washer Thickness
- 0.044 inches minimum and 0.064 inches maximum
- Hole Diameter
- 0.050 inches minimum and 0.060 inches maximum
- Grip Diameter
- 0.3735 inches minimum and 0.3745 inches maximum
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 1.490 inches minimum and 1.510 inches maximum
- Hole Quantity
- 4
- Hole Type
- Drilled
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 260000 pounds per square inch
- Hardness Rating
- 51.0 rockwell C minimum overall and 54.0 rockwell C maximum overall
- Hole Configuration Style
- Round longitudinal hole
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Material
- Steel comp H11 overall
- Material Document and Classification
- Ams 6487 assn std single material response overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- MIL-C-8837 ty 2 cl 2 mil spec 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.