I'm pretty sure I have the same ones pictured multiple times earlier too. They were on the car when I received it, presumably installed by the dealer. Seems to be some kind of standard-issue Nissan locking lug thing. I haven't had any issues yet, but I'd rather not have any in the future.
I hadn't thought about the fact that these don't have washers like the other lugs. Is this really an issue? Should I get them off the car?
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