A wheel nut, also known as lug nut, is a fastener used to secure the wheels of a vehicle. Designed with a rounded or tapered end, wheel nut is often used to secure a wheel to threaded wheel studs and thereby to a vehicle's axles. Some designs use lug bolts instead of nuts, which screw into a tapped (threaded) hole in the wheel's hub or brake drum or disc. This configuration is commonly known as a bolted joint. There are many wheel nuts in the market of various designs and also features. For instance, some are made of forged aluminium that is of light weight meant for racing, while some are made of special material meant for anti-theft.