Product Details: The Automann Flanged Cap Nut is a multi-piece fastening solution designed to help prevent damage to the material being fastened and improve load distribution. It is made from a variety of materials depending on the specific application requirements. It is designed to withstand a certain level of load or pressure depending on the intended application. The flanged cap nut is easy to install and provides a secure and reliable fastening solution. FleetPride is your First Click in Heavy Duty®.