A bunch of sources have #1-72 flat washers, up to 3/16" diameter. Stack one of these over the #2 ring terminal to get good clamping contact.
Can anyone pls suggest where to purchase ring terminals for 1-72 srews? They are to connect wires to a screw that's through the Atlas turnout hole to power the frogs and remotely switch the throwbars. Of course open to other ideas.
I scoured online and talked to an electronic supply store associate. The largest I can find is a #2 which, from an earlier discussion here, suffices for a 2-56 screw.