plain steel washers
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Flat Washer
Flat washers are usually thin pieces of various shapes used to reduce friction, prevent leakage, isolate, prevent loosening or disperse pressure. This material is found in many materials and structures to perform a variety of similar functions. Due to the material and process limitations of the threaded fasteners, the support surface of the fasteners such as bolts is not large. Therefore, in order to reduce the compressive stress of the pressure receiving surface, the surface of the connected member is protected, and a gasket is used.
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