DIN 9021 FLAT WASHER Technical Specification and Weight Chart of Flat Washer as per DIN 9021,mudguard washer, iso 7093, flat washer weight chart, din 9021 pdf, din 9021 standard, din 9021 washer m8 m10 m12 m16 m20, din weight chart. DIN 9021 is a standard specification for flat washers with a larger outer diameter. These washers are designed to distribute the load of a threaded fastener, such as a bolt or a screw, over a larger surface area to prevent damage to the material being fastened. DIN 9021 washers are commonly used in various industries for general purpose applications where a larger outer diameter washer is needed for better load distribution and protection of the surface.