Thanks Mike. That would certainly work if someone didn't want to change the studs and that would be a good option. $20 or so for 10 metric lug nuts isn't going to break the bank, but I decided to go ahead and replace the studs with the kit provided 1/2-20 studs since I already had them and a relatively easy way to swap them.For anyone building one of these with the IRS, you might as well leave the metric studs in place and buy nuts for them. You will need to use spacers in the back unless you buy custom wheels. Just buy the spacers with the normal 1/2-20 threads. now all your lugs will be the same unless you remove the spacers.