- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.516 inches minimum and 0.586 inches maximum
- Fastener Length
- 2.838 inches minimum and 2.888 inches maximum
- Head Style
- Double hexagon W/hole
- Head Height
- 0.338 inches minimum and 0.358 inches maximum
- Width Between Flats
- 0.367 inches minimum and 0.376 inches maximum
- Extended Washer Diameter
- 0.521 inches minimum and 0.531 inches maximum
- Extended Washer Thickness
- 0.072 inches minimum and 0.092 inches maximum
- Grip Diameter
- 0.3115 inches minimum and 0.3120 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches minimum first hole and 0.081 inches maximum first hole
- End Item Identification
- Aircraft, eagle F-15
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 2.302 inches minimum and 2.322 inches maximum
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 220000 pounds per square inch
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 2.630 inches minimum first hole and 2.690 inches maximum first hole
- Material
- Steel corrosion resisting overall
- Surface Treatment
- Passivate overall
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 76301-ST3-571 manufacturers 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.