DIN440 flat washers 1.Size:M5-M52 2.Material :carbon steel,stainless steel DIN440 flat washers1.Size:M5-M522.Standards:DIN ,ANSI/ASME,BS,GB,JIS,Non-standard3.Surface:plain,zinc plated,black oxide,hot dip galv.etc.4.Packing:general export package,according to clients`requirments.5.Delivery time:About 30days after placing order DIN440 Flat washer