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Guys, I need to locate a socket for the wheel-lock lug nuts for a set of 16" Fuchs that are on my '76 Turbo. I bought the car last year and just recently discovered that the socket did not come with the car. I've attached a couple of pictures below, but the wheel locks are basically 3-sided nuts, with rounded shoulders in between, instead of the standard hexagon nuts. I don't know if these are original wheel locks (my guess is that they are) or an after-market variety, but any help would be appreciated. Thanks!