Hex allen key fasteners 1,Products DetailesMaterial1.Stainless Steel: SS201, ... FinishingZn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Chromate, Polish,Electro Painting,Black Anodize, ... our goods will satisfy yr request of 100%,and have 18 month warranty.Aftersales servicewe will ... follow up goods for every customer and help solve problem after sales. 2,Factory overview ...