New bronze clutch and brake pedal bushings

Hey mopowers, what are those funky looking "star" washers/nuts? I stumbled across a few in my bolt bin and wasnt sure what they are for?
Thanks
Steve
Hey Chris, these things are legit. Thanks again! Got mine in and the fit was perfect. Obviously, the pedal isn't as nice to look at as the piece of art posted above, but here are a couple pictures. Excuse the fuzzy pictures- damn shaky hands.

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