1>Product Name: Carriage Bolts 2>Standard: DIN603, B.S, IFI C-40, AS1390 3>Class: 4.8/8.8/ Gr.2/Gr.5 4>Diameter: M5-M20 1/4 Specialized in manufacturing and selling all kinds of fasteners, The Company has the self-management exportation power. At present the product by the foreign trade mainly, Exported to North America, South America, Europe, Australia, South Asia, Africa and the Middle East and ...