You are reading a single comment by @M_V and its replies.
Click here to read the full conversation.
-
Compare it to a water bottle boss bolt. It looks about that size.
Hold them end to end to compare diameter and lay the threads along each other to compare thread pitch, if it's a match then you want m5 x 8mm countersunk bolts.
Was that 8mm the thread length or total bolt length actually? You want to know the thread length but as @Netakure says, can always trim if too long.
M_V
Is there any way to ID this bolt without accurate measurement/any way to measure the thread? They hold my derailleur hanger on and one of them has disappeared at some point. Assuming I shouldn’t be using the bike with just one in.
Rough measurements using tape measure have it at 8mm long with an 8mm wide head. 2.5mm hex head.