- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.276 inches nominal
- Fastener Length
- 0.636 inches minimum and 0.666 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.328 inches minimum and 0.385 inches maximum
- Grip Diameter
- 0.1885 inches minimum and 0.1895 inches maximum
- Shank Unthreaded Hole Diameter
- 0.070 inches minimum first hole and 0.080 inches maximum first hole
- Internal Drive Style
- Offset cruciform (torque set)
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 0.365 inches minimum and 0.385 inches maximum
- Thread Quantity per Inch
- 32
- Minimum Tensile Strength
- 16000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 10.0 degrees maximum
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 0.509 inches minimum first hole and 0.549 inches maximum first hole
- Material
- Iron alloy 660 overall
- Material Document and Classification
- AMS5737 assn std single material response overall
- Surface Treatment
- Passivate overall
- Surface Treatment Document and Classification
- QQ-P-35 fed spec single treatment response overall
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS1153 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.