- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.350 inches minimum and 0.400 inches maximum
- Fastener Length
- 1.360 inches minimum and 1.390 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.577 inches minimum and 0.635 inches maximum
- Grip Diameter
- 0.3110 inches minimum and 0.3120 inches maximum
- Internal Drive Style
- Offset cruciform (torque set)
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.990 inches minimum and 1.010 inches maximum
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- Titanium alloy overall
- Material Document and Classification
- Nas 621, composition 6AL-4V assn std single material 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.