Ensure your semi truck is Ready for the Road Ahead with advanced flange nut protection, with the Roadmaster 33mm x 2-3/4" Chrome ABS Threaded Flange Nut Cover. By utilizing a chrome design, this replacement cover works to protect flange nuts from dirt, debris, moisture, and other harmful elements. Built with durable materials and a lightweight design to be suitable for trucks, trailers, and other similar vehicles. FleetPride is your First Click in Heavy Duty .