Ive been looking to order a new set of lugs because I've been told that I can't use the stock 15s on monoblock II but I've also seen some have used their stock lugs on 17 monos. So I've gone out to measure the thread lengths when my stock bolts are in the rim. I have a pair of 17s and 18s and the both measure about the same, as well as my stock 15 alloys. Can someone tell me if I can use my stock lugs or no?? The first pic is of the stock 15s, the second is the 18" and the third is the 17". also the size of the entire nut and shank length Click image for larger version. 

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