... ,NEF,JIS,GB 2.Size:M3-M76 3.Finish:plain,zinc,black,nickel,chrome,etc flat washer1.Standard:ANSI,ASME,DIN,BS ... .Surface Treatment:plain,zinc,black,nickel,chrome,etc4.Package:in bulk,25kgs per carton,then on pallet or small box or according to customers ...