I can't source "clamping levers" off the shelf that work so plan to weld my own levers to a hex bolt or threaded rod. I have never welded anything but have a small Lincoln machine and can prob figure it out. What material bolts /rod will weld best to a low carbon steel finger lever I shape up myself? The shaft is 2" x 5/16 thread. The finger lever is 2 x 3/8 x .125 low carbon steel. What materials will weld up and quench well? Many thanks !