my mk uses sierra hubs , and the original pinch bolt does not have any markings on it to say what the tensile strenght of it is.

does this mean that the originals are mild steel bolts? or if they are high tensile what should the rating be ?

Ditch

if it's the original bolt, chances are the markings have rusted off the head.

i'd imagine in standard trim, it'd be a 10.9, but since in a double wishbone setup, it's far less loaded, an 8.8 is perfectly fine...well, it's massively overkill really.

tom

many thanks, i will try and get some longer ones tommorrow.

ditch