Does anyone use the Greaves "Jones-Bond" series of copper lay-in lugs, with stanless set-screws, when bonding steel walled pools. How about stainless screws to attach the lugs? I had to buy stainless hardware at Lowes, but none of the local supply houses carry any of this stuff. I believe a standard copper lug has zinc-coated set screws. Won't this eventually corrode? How about zinc hardware through a copper lug attached to a galvanized pool?