- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.443 inches minimum and 0.510 inches maximum
- Fastener Length
- 1.265 inches minimum and 1.312 inches maximum
- Head Style
- Flat countersunk undercut
- Head Diameter
- 0.4750 inches minimum and 0.5066 inches maximum
- Head Height
- 0.0713 inches minimum and 0.0733 inches maximum
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Internal Drive Style
- High-torque
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.802 inches minimum and 0.822 inches maximum
- Features Provided
- Dry film lubricant and O ring and cetyl alcohol lubricant
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Special Features
- Fluorsilicone rubber O-ring, per MIL-R-25988 TY1, cl 1, gr 70; lubricants applied on shank and threads
- Material
- Titanium alloy uns R56400 fastener
- Material Document and Classification
- Ams 4967 assn std single material response fastener
- 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.