These dual-rated lugs are constructed from high strength aluminum alloy and electro tinplated to provide low contact resistance|Lugs and mounting hardware packaged together in these kits|UL listed AL9CU dual rated set screw terminals and CSA certified - ensure the transformer feeders and taps are terminated properly|Plated steel cap screws and hex nuts with captive conical washers or individual belleville washers|Terminal to bus connections are made using proper hardware resulting in true torque to pressure performance|Compensates for dissimilar metal expansion and contraction|Hardware packed in plastic bag, no lost hardware prior to installation|6 AWG to 250 kcmil aluminum/copper conductor size|Unplated plating