- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.870 inches nominal
- Fastener Length
- 1.000 inches minimum and 1.062 inches maximum
- Head Style
- Crowned hexagon
- Head Height
- 0.162 inches minimum and 0.182 inches maximum
- Width Between Flats
- 0.490 inches minimum and 0.502 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.031 inches minimum and 0.062 inches maximum
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 125000 pounds per square inch
- Hardness Rating
- 26.0 rockwell C minimum and 32.0 rockwell C maximum overall
- Part Name Assigned BY Controlling Agency
- Navy special project
- Surface Treatment
- Cadmium and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416 type 2 class 2 fed spec single treatment 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.