I bought a yardsale tub of all u minium pop rivets assorted sizes of shank and diameters, have used them for a number of fixes, sleeving wallered out wheels and mix matching axle and wire sizes, use them for bulkrhead sleeves, and other little projects, I'm getting ready to build some flying guide wires whatever you call them.. lol ... I have an idea that begiins with an "r".