- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.585 inches minimum
- Fastener Length
- 0.750 inches nominal
- Head Style
- Flat countersunk
- Head Diameter
- 0.742 inches minimum and 0.762 inches maximum
- Locking Feature
- Strip threads
- Internal Drive Style
- Offset cruciform (torque set)
- Nominal Thread Diameter
- 0.375 inches
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell C minimum overall and 40.0 rockwell C maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Material
- Steel overall
- Surface Treatment
- Cadmium overall and chromate overall
- Thread Series Designator
- UNF
- Specification/Standard Data
- 80205-NAS1189 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.