This part, conforming to GB93-76 standard, features spring washers. Their core purpose is to prevent loosening, protect connected components, and balance pressure in various fastening scenarios, making them suitable for multiple industries such as construction machinery and automobiles. Their core function is preventing loosening and reducing vibration. This washer is installed between the nut and the connected component. Tightening the nut generates a continuous elastic preload, tightly pressing against the nut and significantly increasing the friction between the nut and bolt threads. Construction machinery such as bulldozers and loaders manufactured by Xuan Gong operates in environments with severe vibrations, such as mines and construction sites. Using this washer in many of their internal connections ensures component stability. During tightening, when the nut directly contacts the connected component, the concentrated pressure can easily scratch the surface of the component. This spring washer acts as a buffer, preventing hard contact between the nut and the connected component, reducing wear on the component surface during tightening, and is particularly suitable for connecting high-precision components or parts requiring surface protection in Xuan Gong machinery. It can distribute the concentrated pressure applied by the nut to a larger contact surface, preventing deformation or damage to the connected parts (especially softer or more fragile components) due to excessive local pressure. For example, in mechanical manufacturing, when bearings, gears, and other components are connected to bolts, this washer disperses the pressure to ensure the normal shape and performance of the connected parts. In addition to being suitable for the engineering machinery field, which is Xuan Gong's main business, this washer can also be widely used in other industries due to its standardized specifications. For example, in the automotive industry, it can be used in engine and suspension systems; in the petrochemical industry, it can be used in pipe and valve connections; and in the threaded joints of electronic equipment. Its reliable fastening assistance can improve the stability and service life of various equipment and component connections.