These excellent quality replacement nuts were used on the F-150 xlt 2016 MY. The original lug nuts that Ford tightened in two pieces because one day you're going to get in trouble if you try to take them off and it's never the right time for it, it's a one piece 21mm head to tighten them , or fit and look perfect, very sharp only time will tell how they hold up to rust or corrosion I don't know yet but they seem to have a good chrome finish. I change my tires regularly. Now let's see how all four seasons relate to them. Good luck with your decision.