Caliper bolts?

[Dudeofrude]

Hi Dude,
I can't help you out with the sizes but an excellent stainless bolt supplier is custom-fasteners.co.uk
01686 629666. The diameter under the original bolt head will give you the  M size eg M8 or M10 etc and the thread length is  again measured from under the head. Hope this helps.

Thanks robbo, that may be what I have to resort to if I can't find any kind of kit ?