Use a proper clamp designed to connect copper wire to galvanized tower legs. For Rohn 25, the clamp is part number R/CPC-1.25 and I'm sure there is a larger one for Rohn 55. A local electrical supp
Here are two sources with what seem to be the best prices. If you poke deeper, you learn that the two links are simply different DBAs for the same business. :) $30 each. https://www.cableandwireshop
hello TTers. In the past I have used the Rohn tower ground clamp or the a pipe SS ground clamp with bronze mounting lug. Lately I have opted for the DX eng. unit https://www.dxengineering.com/parts/d
One more alternative is to use a DX Eng saddle clamp and extend the saddle backing plate far enough to use two hole lugs. I made the backing plate out of 1/4 x 1-1/2" 6061 and wide enough for two lug