I replaced the factory nuts on my G8 with these. They are ok but feel a little flimsy and light compared to the old ones. The tapered end is half the depth of the factory jam nuts. They look ok but they don't cover the wheel holes as well as I would like. I cranked her up to 100 pounds per foot, then went for a walk and checked her steps. I made some hard stops and corners. I then re-tightened them and found that they held well without loosening.