Screw, Bolt, Nut manufacturer / supplier in China, offering Stainless Steel 304/316 Hex Wood Screw for Utility Trailers and Truck Decks M6 M8 M10 with Grade 2/5 DIN 571, Hot DIP Galvanized Carbon Steel Spring Washer for PV & Wind Power Projects and Power Transmission Facilities with DIN127, HDG Carbon Steel Flat Washer for Outdoor Steel Structure with Steel Structure & Photovoltaic Project DIN125A and so on.