Suki M6 Washer help to spread the load of a bolt or screw over a larger area and to help prevent loosening under vibration These stainless steel DIN 9021 washers by Suki are plain washers with large outside diameter and are suited for a metric M 6 screw size Washer distribute the load of a fastener across a surface It is used as spacers, springs, shims, or locking devices It also conforms to the product standards of DIN 9021