DIN 125 A refers to a specific standard for flat washers that are commonly used in various mechanical and construction applications. These washers are characterized by their circular shape and uniform thickness, designed to distribute the load of a threaded fastener, such as a bolt or screw, over a larger surface area. The DIN 125 A standard specifies the dimensions, tolerances, and material properties of these washers to ensure compatibility and reliability in assembly processes. Typically made from materials such as steel, stainless steel, or plastic, these washers play a crucial role in preventing damage to the surfaces being fastened and in reducing the risk of loosening due to vibration or thermal expansion. The adherence to the DIN 125 A standard is essential for maintaining the integrity and safety of mechanical systems.