UPDATE: These lug nuts are not stainless steel and do not have anti-rust protection. They started rusting within a month. If you're in the Rust Belt or anywhere north, it won't take long. They're perfect for short-term use, that's all. I bought these nuts to replace old nuts on my 2015 Chevy Silverado 1500. The OEM nuts have that stupid two piece vanity cover that always either swells with rust or cracks and falls off leaving an ugly base nut. These nuts are strong one-piece nuts that are a perfect match for standard OEM wheels. Don't let the actual seat size of these nuts fool you. They hold the wheel just as well as stock nuts. A very good and inexpensive replacement for your 2014-2015 Chevy Silverado since the dealer charges $8 for an OEM factory nut replacement. 5 stars across the board.