Nut, Hex Nut, Hexgon Weld Nuts manufacturer / supplier in China, offering Chinese Fastener Manufacturer Bolt Nut Products Hex Weld Nut, Blue-White Zinc Plated/Galvanized Carriage Bolts/Mushroom Head Square Neck Carraige Bolts (Grade 2 Grade5), DIN603 Zinc/Galvanized Carbon Steel Mushroom Head Square Neck Bolt Carriage Bolts and so on.