Lug nut /stud length

ValiantOne said

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I know that is enough engagement to be safe but I don't like it. It just looks half a$$ed.
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IMO, they are too short. I try to use 1.5 X bolt diameter engagement. 1 X bolt diameter would be absolute minimum depending on chamfer depth.

If no mark you'll need to press one out and measure to be sure of knurl size I expect.