- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.503 inches minimum and 0.553 inches maximum
- Fastener Length
- 1.638 inches minimum and 1.668 inches maximum
- Head Style
- Dished hexagon
- Head Height
- 0.250 inches minimum and 0.265 inches maximum
- Width Between Flats
- 0.741 inches minimum and 0.752 inches maximum
- Grip Diameter
- 0.4990 inches minimum and 0.4995 inches maximum
- Nominal Thread Diameter
- 0.500 inches
- Grip Length
- 1.115 inches minimum and 1.135 inches maximum
- Thread Quantity per Inch
- 20
- Minimum Tensile Strength
- 160000 pounds per square inch
- Surface Finish
- 32.0 microinches bearing surface of head
- Part Name Assigned BY Controlling Agency
- Navy special project
- Material Document and Classification
- Ams 4928 assn std single material response or ams 4967 assn std single material response overall
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS6408 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.