... 3.standard: din9021,din125a 4.free sample, plain din 125 a Washers (DIN / ANSI standards) Material:stainless steel,poly,iron,copperSurface ... Finish:nick plated,zinc plated,black platedPayment:T/T,L/Csize: M1-M22ttrade term: Ex works, FOB ,C&F, CIFsample ... :we sure the best serviceMOQ: 100,000 pcs din 125 a Washers (DIN / ANSI standards)