Thanks Guys.
Someone advised me to use shoulder bolts instead of set bolts, so got my father to bring me home what I needed.
60's and 80's. For the 70mm ones i will just have to cut 10mm thread off. Not a problem.
Pic..
Davey: I have just noticed that once they have been on and off a few times, they dont have such a tighter fit as when they were new.
Ozzy1: All bolts i use will be 8.8 tensile. Pic above
