JZNEE.JZNEE was established on December 19, 2001, with its registered office located in Shanghai. JZNEE's products are widely applied across numerous industries and fields including automotive, construction machinery, railways, urban rail transit, bridges, and aviation. They have been specifically designated for use in several major national projects such as the Qinghai-Tibet Railway, Maglev projects, Donghai Bridge, Hangzhou Bay Bridge, and Qingdao Sifang Bombardier high-end passenger cars. JZNEE has evolved into a company with comprehensive R&D and manufacturing capabilities centered on the Speil® anti-loosening thread technology. This encompasses a full range of products including nuts, threading tools (taps, gauges), tapping equipment, and inspection instruments. The company holds a world-leading position in the application, manufacturing, testing, and research of Speil® anti-loosening thread products and thread technology. JZNEE obtained ISO 9001:2000 quality system certification from the Hong Kong Quality Assurance Agency in December 2003. In March 2009, it achieved TS16949:2002 quality system certification from Bureau Veritas Certification. Primary products include: anti-loosening nuts, self-locking nuts, and locking nuts.
