- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.338 inches minimum and 0.388 inches maximum
- Fastener Length
- 1.786 inches minimum and 1.816 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.339 inches minimum and 0.381 inches maximum
- Grip Diameter
- 0.1885 inches minimum and 0.1895 inches maximum
- Internal Drive Style
- High-torque
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 1.428 inches minimum and 1.448 inches maximum
- Thread Quantity per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell C minimum and 40.0 rockwell C maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Part Name Assigned BY Controlling Agency
- Navy special project
- Special Features
- Internal drive ribbed
- Material
- Steel comp E4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150 overall
- Surface Treatment
- Cadmium and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416, TY2, CL2 fed spec single treatment response overall
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS1580 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.