Screws: t rivet Material: Carbon steel; stainless steel, brass, ect. STANDARD: DIN,DIN,JIS, BSW, ANSI or as your request Screws: t rivetSize: according to the consumers' requirementMaterial: According to the consumers' requirementSurface Treatment: Zinc, copper, tin, nickel or friendly as your requestBrand: XINYUStandard: DIN,DIN,JIS, BSW, ANSI or as your requestPlace of origin: Zhejiang China ( ...