Originally Posted by
cyclic_eric
If you're worried about finding the bolt, I would say first take your bolt to the hardware store and get them to measure it - write it all down. Then go to their stacks of Vidmar shelves or whatever where you can find if a steel bolt of the correct head, length, shaft diameter, and shaft threading is available for you. If you can't find one, take your little sheet of specifications and search on the McMaster-Carr website, or call them and get direct assistance. If you have a choice, take a good look at the available finishes or platings which may be available to you. Hardened steel is good, but it can rust. I believe Campy bolts were originally chromed, but I'm not sure they can be duplicated. This is another example of "please try not to lose the original fasteners from your vintage bike parts."