- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.438 inches nominal
- Fastener Length
- 1.048 inches minimum and 1.078 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
- Shoulder Diameter
- 0.342 inches minimum all shoulders and 0.343 inches maximum all shoulders
- Shoulder Length
- 0.615 inches minimum all shoulders and 0.635 inches maximum all shoulders
- Nominal Thread Diameter
- 0.312 inches
- Features Provided
- Finished head
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Minimum Yield Strength
- 95000 pounds per square inch
- Shoulder Shape
- Round all shoulders
- 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-NAS6305 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.