Here are a few things I'm looking for: 1/2" brass rod, perfectly straight, that I can drill and tap a hole in the center of to use as a tang nut. Stainless steel 3/16 in cap nut dome topped as is used in Randall knives. At least I think it's 3/16 in thread, it may be a quarter inch thread. Examples.... https://www.amazon.com/gp/product/B004RCX8XS/ref=ox_sc_saved_title_4?smid=AYETLLJ1Q9FG5&psc=1 This one is brass; which would be fine and it's what I'm looking for in stainless: http://www.art-and-steel.com/uploads/5/4/7/3/54738255/s317787670452157329_p117_i1_w640.jpeg And where would the best place be to acquire new idler wheels for my Bader III antique grinding machine? I'm sure bader sells them but isn't there a place I can get some at a better price than that? Mine have the slightest amount of give and I think that's part of the problem with my belt not tracking well.