Car make and model specific aluminum spacer plates SCC system 2 with centering collar. Wheel bolts longer than the thickness of the plate are required for installation. In addition to the length of the new bolts, make sure that the taper of the bolts matches that of the rim bolt hole (60° sharp taper. R12. R13. R14 ball taper or flat seat). Also check the thread size. NB! Always check the suitability of the plate before installation. especially carefully if the plate thickness is less than 12 mm. Set of 2 discs.