Looking for suggestions from those who have "been dere and done dat". I came across a D12 that I'd like to clean up and put to work. Three of the nuts broke loose without issue but the screw that goes into the medallion does not want to let loose. When I try turning the screw head, the medallion moves right along with it. I guess I could clean up the plate with the handle on but it always seems like it is easier and they come out more even if I take the handle off before I go after the grunde and rust. Thanks for your suggestions!