The use and function of screw flat washer-hardware

We know that a flat washer must be added when screwing a screw, so what are the uses and functions of the screw flat washer? Xiaoshuo briefly talks about a few points with you: 1. In the screw with nut, the function of the gasket is to increase the contact area, reduce the pressure, and protect the parts and screws. 2. Gasket refers to a material made of paper, rubber sheet or metal sheet and placed between two planes to strengthen the seal. The sealing element is set between the static sealing surfaces to prevent fluid leakage. 3. Gasket is a mechanical seal between two objects. It is usually used to prevent pressure, corrosion, and natural expansion and contraction of pipelines from leakage between two objects. Since the machined surface cannot be beautiful, the irregularities can be filled with gaskets. Gaskets are usually made of sheet materials, such as paper backing, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, glass fiber or plastic polymers (such as polytetrafluoroethylene). Gaskets for certain applications may contain asbestos. 4. Generally, the screw with nut is fixed in the through hole, and the diameter of the through hole is generally slightly larger than the screw. Therefore, a gasket is needed to increase the contact area. Protect the parts. Tighten the parts, reduce the pressure, and protect the parts and screws. To understand the knowledge of screw flat washer, please add Xiaoshuo's V letter: