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The stainless steel self-locking lock nut produced by Shanghai Detroit has the advantages of simple structure, good anti-loose performance and reusable use. It is a major breakthrough in traditional thread technology.

After more than ten years of development, Shanghai Dete's products are widely used in many industries and fields such as automobiles, engineering machinery, railways, urban railroads, bridges, aviation, etc., especially for the Qinghai-Tibet Railway, Maglev Engineering, Donghai Bridge, Hangzhou Bay Bridge, Qingdao Sifang Bombardier Advanced Bus and many other large-scale projects in the country. Has owned FAW, Dongfeng, Yutong, Hongyan, Jinlong, SAIC, heavy truck, Shaanxi Automobile, Shangchai, Dachai, BorgWarner, Futian Heavy Industry, Sany Heavy Industry, Zhenhua Port Machinery, Changchun Bus Factory, Baoji Bridge Factory, Baoji Petroleum Machinery Factory, Qiqihar Locomotive and Rolling Stock Factory, Xi'an Aircraft Manufacturing Plant and other 50 large state-owned enterprises. The “Spirit®” brand owned by Shanghai Detroit has become a famous brand in the machinery industry.

After more than ten years of development, Shanghai Detroit has become a comprehensive series of research and development including nuts, thread tools (tapes, gauges), tapping equipment and testing instruments centered on the technology of Spiking® anti-loose thread.