- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.476 inches minimum and 0.526 inches maximum
- Fastener Length
- 1.361 inches minimum and 1.391 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.633 inches nominal
- 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
- 0.865 inches minimum and 0.885 inches maximum
- Thread Quantity per Inch
- 24
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Material
- Steel comp 4140 overall or steel comp E4340 overall or steel comp 8740 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.