Hangzhou Dingmingshang Industry Co., Ltd. is located in Xiaoshan District in Hangzhou City, Zhejiang Province, China. Established in 2001 specializes in producing high strength fasteners. We enjoy comfortable environment and convenient transportation. Covering an area of 26，000 square meters，our factory is equipped with  advanced production and testing equipment, operating under strict QC guidelines to guarantee high-quality products at competitive prices.

        We can produce shear connector studs for stud welding, hexagon bolts with large hexagon head, plain washers and high tension control TC bolts.  we can also produce high strength bolts with large hexagon heads, high strength large hexagon nuts and high strength plain washers all for steel structures. The products can be produced by DIN,ISO, ASTM, ANSI, JIS, AS, and other standards. The strength grade can reach 8.8s-10.9s, and the steel structure can reach 8.8s -10.9s. Our products are widely used in the areas of steel structure, bridge, railway, regular boat, car industry, electric power and nucleus engineering items, etc.