These PVC washers are widely used in home and commercial automobiles and electrical connection appliances: such as fixing junctions between door handles and doors, re-seal the tail light cover screws, repairing toilet seat, hinges, and shower door handles, so on. These plastic washers are made of durable PVC material, which is lightweight, wear-resistant, and has good insulation, strong airtightness, and resistance to rust and corrosion. They are also easy to carry and durable. PVC flat washers have excellent corrosion and wear resistance to ensure extended service life. They play a vital role in reducing friction between fasteners, preventing leakage, isolating parts, and preventing loosening or pressure distribution. These PVC round washer spacers are in a smooth surface which are easy to install and can reduce friction between screws and nuts.