Metric BZP Flat Washers

Washers are used to distribute the load of a threaded fastener, such as a bolt or nut. Before a screw or bolt is driven into a surface, a washer may be placed in order to prevent looseness and provide protection. This also prevents the bolt head and nut from damaging the surfaces of the two fastened parts.

it's crucial to note that the protective layer can wear off over time, especially in environments with high moisture or salt content, such as coastal areas. Therefore, BZP washers are less suited for highly corrosive environments