- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.938 inches nominal
- Fastener Length
- 3.173 inches minimum and 3.203 inches maximum
- Head Style
- Bevel-conical
- Head Diameter
- 1.040 inches minimum and 1.050 inches maximum
- Head Height
- 0.625 inches nominal
- Internal Drive Style
- Hexagon
- Nominal Thread Diameter
- 0.625 inches
- Width Across Flats
- 0.5005 inches minimum and 0.5035 inches maximum
- Thread Quantity per Inch
- 18
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell C minimum overall and 40.0 rockwell C maximum overall
- Material
- Steel overall
- Surface Treatment
- Cadmium 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.