A gasket is a sealing element used to prevent leakage of liquid or gas, often used to fill gaps in mechanical assemblies. They come in many different types and materials, including rubber, polyester, polyurethane, PTFE, copper, stainless steel, and more. Washers are widely used in automobiles, machinery, construction, electronics, medical and other fields.
The function of the washer is to protect the surface of the connected parts from being scratched by the nut and to disperse the pressure of the nut on the connected parts. There are many types of gaskets, and their materials include metal, rubber, asbestos, etc. Different types of gaskets have different functions. For example, flat washers are mainly used to distribute loads evenly, spring washers have a certain self-tightening function, and lock washers can prevent the connected parts from loosening when the bolts are loose.
