i've 356A brake drums on my 61 with OG empi 5 ,my problem is that later I would like to put my crestlines on my car and that the original porsches bolts don't go with this rims because the site for those isn't conical. the wheels stud porsche are in 14 mm and VW in 12mm and it would be necessary that I find the good models of bolts of 14 mm for the crestlines , I would need the same models as those for the empis 8 but for wheels stud in 14mm . that it's clear like explanation