Trying to change the bolts on my singlespeeds sliding dropouts so it matches the bolt size on my Alfine. No matter how careful I am, every now and then I go out with the wrong spanner, (or both) meaning I can't get the wheel out and/or re-tension the chain.
It has Stainless M8 bolts, 16mm long with a 13mm hex head.
I would like to change them for M8, 16mm long but with a 15mm hex head.
Does anyone do oversized heads? I've tried searching for them with 15mm heads but its difficult as it just brings up all the bolts that are 15mm long!