I am about to install my homebrew Eggbeater antennas, one for VHF the other UHF on my roof. For materials, I have used Stainless Steel coupling nuts (to hold the looping elements), with stainless steel socket set screws as an element clamp. The elements themselves are copperweld or copper clad steel which are inserted into the stainless threaded spacers which were drilled through to accept the elements (see image). My question, will the copperweld and the stainless react with each other when wet or dry and if so, what would you recommend to inhibit that reaction. I have planned on using my Noalox grease but was wondering do I need the grease at all on those connection points and if not, should I use it anyway.