- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.403 inches nominal
- Fastener Length
- 1.465 inches nominal
- Head Style
- Flat countersunk
- Head Diameter
- 0.3988 inches nominal
- Grip Diameter
- 0.2490 inches minimum and 0.2495 inches maximum
- Internal Drive Style
- Offset cruciform (torque set)
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.062 inches nominal
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 3700 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Material
- Iron alloy 660 overall
- Material Document and Classification
- Ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5737 assn std single material response or ams 5853 assn std single material 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.