David - you're going to have a very hard time finding any lug nut for
BMW uses lug-bolts. They are not the same as a common bolt (both in
strength and shape.)
Your best bet is a dealer or one of the MANY on-line BMW parts places
(http://www.bmaparts.com is good..)
My tire store gave me a complete set of them recently. I have no idea what
they should be worth.
I can't help but wonder why you need new ones. I needed new ones because the
ole rims had a huge center cap, so the bolts were hidden. I got new rims
where the bolts are exposed, so I wanted them to look better.
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