Nut Zinc Plated Wing Nut 1/4" Description Standard:Lock Wing NutGrade:2 / 5 / 8Diameter:3# -- 3/4"Material:Carbon steel, ... Phosphate,Black Oxide, Chromate,ETC Packing:Bulk or small packing according to requirementShanghai Detroit Precision Fasteners Co., Ltd, located in Shanghai ... , aluminum, brass or other special materials.Our products are manufactured according to DIN, ANSI, AS, BS, JIS, GB, ISO and ...