Originally Posted by chinesebob
Conduit locking nuts are almost all galvanized. Can't find them any other way.
2. Yeah but you've been using 2" your whole life and look where that's got you.
Bob Most are not galvanized but are cadium plated. Pool acid dunk and water rinse and all is good. I perconally wouldn't worry about it. Also fender washers will work to cover gap.
If the bishing you speak of if from the black pipe section watch welding it because the ones I have seen are a rough cast piece (almost like cast iron)and don't take to welding.