Water Bottle Cage Bolt Thread size?
04-21-18, 11:46 AM
#1
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Water Bottle Cage Bolt Thread size?
Can anyone tell me what size standard water bottle screws/threads are?
Thanks!
Thanks!
04-21-18, 12:15 PM
#2
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They should be M5x12mm long.
04-21-18, 12:37 PM
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Yes, all the bottle mounts I've encountered use 5mm x 0.8mm thread. If you can't source metric hardware, Unified and American Screw Thread size 10-32 is compatible.
04-22-18, 04:40 PM
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Of course that makes M5 x 0.8mm oversize for #10-32 thread, and some American-made bikes appear to have used #10-32 riv-nuts. M5 x 0.8mm are hard to screw in without damage to something. I have seen people spin their riv-nuts or even break the screws because of this. So if you are trying to thread in an M5 x 0.8mm and it won't go, stop trying. Get a #10-32 and see how that goes. If that doesn't go, then the boss probably needs to be tapped.
(Almost not worth mentioning because of rarity, but some vintage British bikes used 2BA screws.)
