if i got aftermarket rims and wanted locking lug nuts, what size do i get? where would you guys recommend getting them?

 

you want 12 x 1.25 i believe.

I purchased 4 at auto zone and they wouldnt fit because of the shape of the wheels/locks so make sure you can return them. I believe nissan makes some for the stock 17" wheels on the 5th gen SE. Courtesy nissan has them for around $20, but again, they may not fit.

 

what is the lug seat design for our stock rims? conical/tapered, ball/radius, or flat? i assume i can use the same lugs when upgrading to aftermarket rims, but i would still like to get locking lug nuts.