I knew this.....I believe the size is 1.5 x 12 (check before you buy).........The same ones that fit the Pilot I believe. I did see them on ebay for around $50 at one point.
Also, make sure they are the right type, some lugs are beveled, others are not (meaning how it fits the rim) so height and thread size are not the only factor.
As an example, most older type steel rims accepted beveled lugs, where the lug and rim meet.
I believe that most alum. rims have lugs that have a flat botton and a wide washer at top, which in effect the rims "sits" on top of as the lug shaft goes through the rim. I have seen various type of lugs suited to different types of rims, both steel and alum.