- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.556 inches minimum
- Fastener Length
- 4.202 inches minimum and 4.249 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.234 inches minimum and 0.266 inches maximum
- Width Between Flats
- 0.615 inches minimum and 0.627 inches maximum
- Nominal Thread Diameter
- 0.438 inches
- Grip Length
- 3.646 inches minimum and 3.678 inches maximum
- Features Provided
- Finished head
- Thread Quantity per Inch
- 20
- Minimum Tensile Strength
- 125000 pounds per square inch
- Hardness Rating
- 26.0 rockwell C minimum overall and 32.0 rockwell C maximum overall
- Material
- Steel overall
- Surface Treatment
- Cadmium overall and chromate overall
- Thread Series Designator
- UNF
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.