- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.438 inches nominal
- Fastener Length
- 1.188 inches minimum and 1.249 inches maximum
- Head Style
- Dished hexagon
- Head Height
- 0.156 inches minimum and 0.171 inches maximum
- Width Between Flats
- 0.492 inches minimum and 0.502 inches maximum
- Grip Diameter
- 0.326 inches minimum and 0.327 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches minimum first hole and 0.086 inches maximum first hole
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.625 inches nominal
- Thread Quantity per Inch
- 24
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 1.037 inches nominal first hole
- Material
- Steel corrosion resisting overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- QQ-P-416, ty 2, cl 2 fed 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.