Originally Posted by wes

I would do a search for the koyokugen or motuki brand lug nuts. They are light weight lugs that come with a key that is specific to that brand. While they are not LOCKS per se they are proprietary so the thief would have to have the key for that brand...

I have owned both and they are nice. The only thing you MUST NEVER DO is try and use the KEY for these brands with an impact....