Form A Flat Washers DIN 125A are standardized flat washers designed to distribute the load of a threaded fastener, such as a screw or nut. These washers are typically round with a central hole to accommodate the fastener and are manufactured according to the DIN 125A specification, ensuring uniformity in dimensions and material quality. Made from materials such as stainless steel, brass, or carbon steel, they are often used in mechanical assemblies to prevent damage to the surface and reduce the risk of loosening due to vibration. The "Form A" variant specifies a standard thickness and outer diameter. Common applications include automotive, construction, and general machinery.