M8 call steve at speed shack he will send them to ya, 12 x 1,5 pitch, you can have them captive or open, i would go for open in case you have excess thread on the stud then it can come through the wheel nut, if you have captive the stud may bottom out inside the nut and you will have to strip the lot out which is wot you dont want to do, hope this helps
Baz