The hex nuts on the wheel axles of my bicycle are too big for a 5mm Allen key and too small for a 6mm one. What’s the name/size/something of one that would fit? I’ve been googling but to no avail. I know it exists because the shop I got it from had one (but they didn’t know what it was called either or where to buy one from).
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Could it be a imperial bolt and you need to use a 3/16 because imperial to metric doesn’t match up exactly?
I think between your comment and everyone else saying to try a 5.5, this is most likely it. Only other idea is that the holes are wallered out, but a slightly larger key and a hammer should fix that.
Looks like 5.5 isn’t it either - too small but 6 is too big :(
7/32 SAE is the only option between them. Doubt you could find a 15/64 easily.
Send some pics of what you are working with. Probably should post it new for more attention, but put it here too.
Ooh good info. That might be it!
Edit: is that in inches? If yes I guess that’s less than 5mm right? But maybe the next size up is in between 5 and 6
Somewhere between 3/16th inch and 1/4 inch.
The numbers are usually millimeters, try searching for a 5.5mm Allen key.
Lots of results when I search but no idea what country you’re in so pointless me sending any links.
Tried a 5.5 today, that turned out to be too small too :(
Could it be a 5.5? Or a 5 plus a big elastic band maybe?
5.5mm Allen wrenches are a thing, are popping up with my basic internet search.
Are you sure it’s a hex and not a Torx? T30 Torx is approximately between 5mm and 6mm IIRC.
Yes pretty sure it’s a hex one!
