So im on Optionimports trying to get studs for my spacers and i do not know the difference between 14mm knurl or 13 knurl anyone hep me heres the links
14mm
http://www.optionimports.com/ni12exstsh45.html
13mm knurl
http://www.optionimports.com/ni12exstsh451.html
Im replacing the stock 300ZX rear 5 lugs hubs.