Electro-zinc plated lock nut DIN 980 is made of steel and has an electro-zinc plated surface treatment, which gives basic corrosion protection and a shiny surface. The design of the nut prevents accidental loosening of the fasteners it is used with. These nuts are typically used in applications requiring extra securing and locking of screws or bolts, especially in environments with vibration or load. This includes, among others, the mechanical industry, machine building, construction and the like.