Originally Posted by
Schwinnsta
OK, the size of the bolt is 6x25. Get the stainless one.
Not my forte, the bike itself, but that spec doesn't look right; SAE (english) threads go by threads per inch, so I could see 25. Metric threads go by pitch (for one thread), so would be way lower for an M6. I thought perhaps a decimal missing, but I don't see a 2.5 pitch for M6, I think it should be 1.0 or 0.75mm, no? 6mm x 25 threads per inch may be exactly correct, but a funny way of specifying it.
EDIT: Oh, unless you mean 25mm length, any thread pitch. Nevermind.