... steel 3.standard: din9021,din125a 4.free sample, plain din 125 a Washers (DIN / ANSI standards) Material:stainless steel,poly,iron,copperSurface Finish ... :T/T,L/Csize: M1-M22ttrade term: Ex works, FOB ,C&F, CIFsample lead time: within 7 days Delivery Time: 15 ... -20 days or according to the customers'requirementStandard:DIN,JIS,GB,ISO or non-standardService:we sure the best ...