Old thread, but great discussion.
I have a coated head (well, cap) inbound that will be mated to a coated handle. I can definitely see how lubing those threads will help prevent, or at least reduce, wear to both parts where they mate.
As for lubing my other stainless steel, brass, or nickel plated threads, I don't think it would hurt either way. If I had a precious metal plating over nickel, however, (i.e. silver, gold, or rhodium) I would treat those parts the same as the coated parts above, and for the same reasons.
I have a coated head (well, cap) inbound that will be mated to a coated handle. I can definitely see how lubing those threads will help prevent, or at least reduce, wear to both parts where they mate.
As for lubing my other stainless steel, brass, or nickel plated threads, I don't think it would hurt either way. If I had a precious metal plating over nickel, however, (i.e. silver, gold, or rhodium) I would treat those parts the same as the coated parts above, and for the same reasons.