Swashers
Swashers are thin, flat rings made of metal or plastic that are used to distribute the load of a threaded fastener, such as a bolt or screw. They are placed between the fastener and the surface it is being tightened against to prevent damage and provide a more secure connection. Swashers come in various sizes and materials to accommodate different applications and are commonly used in construction, automotive, plumbing, and other industries.