hi what do u think of thesehttp://cgi.ebay.co.uk/VW-Golf-Mk3-4-5-6-Hubcentric-15mm-Alloy-Wheel-Spacers_W0QQitemZ120531355898QQcmdZViewItemQQptZUK_Cars_Parts_Vehicles_Wheels_tyres_Trim_Nuts_ET?hash=item1c103a88fabecause i have RC's on will the tapered bolt whch is supplied with these be ok, or do i need a flat head type bolt?