ZheJiang LaiBao Precision Technology Co.,Ltd (known as Haiyan Dayu Fasteners Ltd.), established in 1995, is an export-oriented company with the self-export right, specializing in the production and distribution of various fasteners. The current annual production capacity is 50,000 metric tons. 90% of our products are sold to the USA, Europe, Australia, the Middle East and other countries and regions. Pursuit of Excellence and Aspiration to be the Best is Laibao (Dayu)'s corporate culture, with which, Laibao(Dayu) has grown into a leading manufacture in China's fastener industry with nearly 2 decades' efforts. Also we are the member of China Fastener Industry Association, and Fastener Import and Export Enterprise Association. The products are widely used in many fields such as construction, automobile, highway bridge, ship, motorcycle, steel structure, railway locomotive and household electrical appliances. Categories: Carriage bolts, Hex bolts, Hex lag screw, Thread rod, Anchor bolt and supporting washers and nuts. Diameter: #10-1-1/2”(6mm-36mm) Length:1/2”-18”(12mm-500mm) Standards: DIN, BS, ANSI, GB, AS and JIS Grades: Gr. 4.8, Gr.6.8, Gr.8.8 & Gr.10.9 Finishes: plain, zinc plated, hot dipped galvanized, black oxide, Dacromet and so on..