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Somehow I lost a single 'stopper fixing bolt' on my down tube cable stop. I have a set of Shimano sm-cs50 outer down tube cable stops, and I don't want to buy new ones because I only need one bolt. Does anyone know the exact name of the bolt, or where I might find a substitute for it?

shimano cs50 downtube cable stop

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Presumably you have the other bolt. Take it to your local hardware shop (e.g. Home Depot) and look in the hardware section for a new bolt. I'd guess its a M5 bolt, but you can easily match its length and size by looking through the nuts, screws and bolts of the hardware shop. Worst case, you get a whole new set of stops for 10 bucks or whatever, online. They should have hex headed ones, but sometimes you'll have to do with a philips/flat head one. –  Batman Apr 22 at 1:04
    
If you already have a good relationship with your LBS they might just give you one, or charge a nominal fee. –  andy256 Apr 22 at 1:17
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A well-equipped hardware store (probably not Home Depot) should have a selection of stainless steel metric bolts. Or a bike shop can probably help you. (The bolt likely does not have to be a round-head -- a "socket-head cap screws" would probably work as well -- but you may find a "socket-head button screws" if you look around.) See store.curiousinventor.com/media/images/guides/metal_working/… –  Daniel R Hicks Apr 22 at 2:18
    
I think it depends on your home depot (our Lowes is significantly worse stocked than our home depot), but I'm pretty sure I saw appropriate bolts for this while I was picking up some M3-.5x6mm screws at my local home depot today to repair my belt. –  Batman Apr 22 at 3:17
    
mcmaster.com They have a huge selection of small hardware. Measure your existing bolt and get a replacement of similar length. These folks ship very quickly, so you should have your item in a couple days. I've ordered lots of different metric bolts for mounting racks, fenders, bottles, etc... –  Benzo Apr 22 at 14:44

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