>>1959384are they pic related ?(there's mtb versions, too)
those are meant to be reused and just slide in new pads.
otherwise no, toss them.
keeping hardware is a good idea imo, but just throwing it in a pile forever is hoarding. you're never going to find it again that way and the pile takes over all your space. so get like a little tackle box and put bike hardware in the little dividers. after you have a couple sets of any one thing, you don't need to save anymore at least until you use the thing on a bike. if you're super enviro you can put extra stuff in a jar for steel or alu and take stuff to the scrap metal place periodically but that's borderline. if you're too lazy to actually go, then you've become a hoarder.
tl;dr don't just save out of environmental or consumer guilt, that's hoarding and it will take over your life
t. seen it working in apartment buildings and force myself to stay in check
