You can use them to fix the toilet seat onto the toilet bowl by your self. Made of high quality plastic material, These screws, nuts and washers are perfect accessories for toilet seat use. Features - Color: White. - Material: Plastic. - This screws set includes square screws, nuts and washers with 2pcs of each. - Made of premium plastic for durable and long lasting use. - These hinge bolts are used for securing the toilet seat onto the toilet bowl. - Easy to install, you can do it by yourself. - Perfect accessories for toilet seat use. PVC screw hinges for wall hung and one piece toilet seat covers. Easily fits most of the soft close hydraulic seat cover. Easy to use and fix the seat cover. Please check the length and width of the previous screw hinges before ordering.