- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.413 inches minimum and 0.463 inches maximum
- Fastener Length
- 4.048 inches minimum and 4.078 inches maximum
- Head Style
- Dished hexagon
- Head Height
- 0.156 inches minimum and 0.171 inches maximum
- Width Between Flats
- 0.492 inches minimum and 0.502 inches maximum
- Hole Diameter
- 0.070 inches minimum and 0.080 inches maximum
- Grip Diameter
- 0.3110 inches minimum and 0.3120 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 3.615 inches minimum and 3.635 inches maximum
- Hole Quantity
- 3
- Hole Type
- Drilled
- Features Provided
- Finished head
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hole Configuration Style
- Hexagon corners
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- Steel comp E4340 overall or steel comp 8740 overall
- Material Document and Classification
- MIL-S-5000 mil spec 1ST material response overall or MIL-S-6049 mil spec 2ND material response overall
- Surface Treatment
- Chromate overall and cadmium overall
- Surface Treatment Document and Classification
- QQ-P-416 ty 2 cl 2 fed spec single treatment response overall
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS 6205 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.