- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.601 inches minimum and 0.651 inches maximum
- Fastener Length
- 2.111 inches minimum and 2.141 inches maximum
- Head Style
- Dished hexagon
- Head Height
- 0.312 inches minimum and 0.327 inches maximum
- Width Between Flats
- 0.928 inches minimum and 0.940 inches maximum
- Grip Diameter
- 0.6235 inches minimum and 0.6240 inches maximum
- Shank Unthreaded Hole Diameter
- 0.141 inches minimum first hole and 0.151 inches maximum first hole
- Nominal Thread Diameter
- 0.625 inches
- Grip Length
- 1.490 inches minimum and 1.510 inches maximum
- Thread Quantity per Inch
- 18
- Minimum Tensile Strength
- 160000 pounds per square inch
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 1.894 inches minimum first hole and 1.944 inches maximum first hole
- Material
- Iron alloy 660 overall
- Material Document and Classification
- Ams 5731 assn std single material response overall or ams 5737 assn std single material response overall
- Surface Treatment
- Passivate overall
- Surface Treatment Document and Classification
- QQ-P-35 fed spec single treatment response overall
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS6310 professional/industrial association 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.