What spec (thread size, length, and tensile strength) bolt do i need to bolt on my sierra calipers to my uprights?

Cheers

As long as they are hi-tensile steel with the 8.8 marking on the top that should be fine :-)

As for size - I think M12? Can't remember - just make sure they fit and are 8.8 hi-tensile! (I've been told if not its an SVA fail)

HTH

Murray

They are 10mm with a thread length of 25mm, (overall bolt length 32mm), and they should be 10.9 grade not 8.8.