Can anyone help me on measuring bolt lengths? Say when a bolt is listed as 77mm, does that include the bolt head, or just the threaded part? I've got brake caliper bolts and I'm just trying to confirm if they are stock length or extended length. I've read that stock is listed as 77mm, which is just about right, but only if I measure threaded body only. Just want to confirm. Is this a stock length caliper bolt? Thanks.

 

Length is measured from under the head to the tip of the bolt.

 

Dock is correct.

 

Thanks guys.

 

Yep

 

 

I am always impressed how you use the internet to your advantage.

 

Hmmm, there is this (be careful and confirm length as length or overall length):