You ever wonder what these things are? I always have and turns out it’s pretty simple. Basically a one of these is not like the other trick. If any of the shapes are pointing a different direction than the others, mechanics can quickly tell if any of the lug nuts are loose. Simple sketch of the principle below.
Working on making a rendering in blender at the moment, but progress is slow. Got a single lug nut and plastic dealy (not sure the full name). Keep an eye out for a future post with a better blender diagram and more in depth explanation!
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