Yihe enterprise is a company specializing in the design and manufacture of nails, square nails, nails roll, all kinds of special shaped nails and screws. Nails material selection of quality carbon steel, copper, aluminum and stainless steel, and can do galvanized, hot dip, black, copper and other surface treatment according to customer demand. Screw main to produce US-made amchine screws ANSI, BS machine screw, bolt corrugated, indlcuidng 2BA, 3BA, 4BA; German-made machine screws DIN (DIN84/ DIN963/ DIN7985/ DIN966/ DIN964/ DIN967); GB Series and other types of standard and non-standard products such as machine screws and all kinds of brass machine screws.