Trying to figure out the proper replacement lugs for my 350z. I've picked up a replacement set. They are acorn 12x1.25. The look similiar to the original bolts except for the fact that they are shorter in length. I initially thought it would make a difference (ie not flush with wheel). I"ve looked online and the acorn guide does not even have a 350z on it (I knew I shouldn't have taken the sellers word for it). Anyways at this point any help would be much appreciated.

 

Are these open or closed nut?

 

Closed nut I believe. They look exactly like the the stock ones. They are just shorter in length. I'm not sure whether that is by function or just by design (maybe to ease with putting them on).

 

The problem with a short nut is that the inside may bottom out on the stud. Try one. You will be able to tell.

 

What davidv said. Try it. It will be obvious if it works or doesn't.