- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 2.991 inches nominal
- Fastener Length
- 3.062 inches nominal
- Head Style
- Hexagon
- Head Height
- 0.125 inches minimum and 0.140 inches maximum
- Width Between Flats
- 0.367 inches minimum and 0.376 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity per Inch
- A28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Screw Material
- Iron alloy 660
- Screw Material Document and Classification
- AMS5731 assn std single material response or AMS5737 assn std single material response
- Screw Surface Treatment
- Passivate
- Screw Surface Treatment Document and Classification
- QQ+35 fed spec single treatment response
- 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.