The Panduit CW-38-L conical spring washer is a critical component for assemblies involving aluminum connectors attached to copper or steel pads. Its primary function is to mitigate the effects of differing thermal expansion rates, preventing loosening of the hardware assembly over time. Constructed from hardened steel and finished with a cadmium plating, the washer provides both high strength and corrosion resistance. This ensures reliable performance in various industrial applications where maintaining a secure connection is paramount.