Flat Washers are made from PVC and are available for 1⁄4" diameter through 1". PVC washers are recommended for connections that utilize hex nuts and bolts. Aickinstrut products are unique in that they are made from non-metal materials. These PVC washers are corrosion resistant and will not rust! They have a max operating temperature of 140 degrees F and are easy to install and maintain. PVC washers are packaged in bags containing 25 pieces. Request a Quote Today!