Hello.

In an overzealous attempt to clean everything, I broke a part on one of my brakes. It's a Dia Compe side pull N500, similar to the one pictured. I was attempting to disassemble the brake's quick release when I sheared off the screw - with nut still attached - on the back of the cylinder that the red arrow is pointing to. The way things fit together, I'm not positive that nut is even meant to turn, but damage done. Does anyone out there have a replacement (ie, sitting in your junk box) for this cylinder? Or does anyone know of a place to obtain one without buying a whole new brake? Thanks. I can send more pictures of the actual part if need be, or give you diameters if you think they vary widely between models, but mostly just looking to get back on the road.