I bought these McGard lug nuts to replace the useless OEM two piece lug nuts that came with our Ford Escape. Got a $180 bill to replace "swollen nuts" at my dealer. How do nuts "swellโ? This happens when you use a two-piece construction to try to match the wheel's aluminum finish. Ring nuts "swell" from moisture, road salt and repeated exposure to impact tools. McGard union nuts are triple chrome plated solid steel and are guaranteed for life. They are guaranteed never to rust, crack or peel. They look very good on the escape wheels. They were perfect for the escape wheels. It's nice to know that I never have to replace these nuts or deal with the problem of their "bloating". If you are looking for the best nuts for your car then you have come to the right place. Quality shines through triple chrome plating. If you have two-piece nuts, get rid of them now and buy some no-replace nuts that won't leave you a wheel you can't remove to fix the flat!