- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.469 inches nominal
- Fastener Length
- 0.892 inches minimum and 0.922 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
- 0.3115 inches minimum and 0.3120 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches minimum and 0.086 inches maximum first hole
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.428 inches minimum and 0.448 inches maximum
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 0.711 inches minimum and 0.741 inches maximum first hole
- Material
- Iron alloy 660 overall
- Material Document and Classification
- Ams 5731 assn std single material response or ams 5737 assn std single material response overall
- Surface Treatment
- Cadmium and chromate 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.