Spring washers are a type of mechanical fastener that are designed to provide a secure and reliable connection between two components. These washers are specifically engineered to apply a constant force or tension, which helps to prevent loosening or vibration in various applications. They are typically made from a durable and flexible material, such as steel or stainless steel, and feature a unique shape that allows them to compress and expand when under pressure. Spring washers are commonly used in industries such as automotive, construction, and manufacturing, where maintaining the integrity of fastened connections is crucial.