Founded in 1970. We have more than 50% share of lock-nut in Japanese market. We have several factories in Japan and Asian countries to manufacture U-nut, GU-nut, Fine U-nut, TWIN FU-nut, and CU-nut Our QC system is under control of ISO9000:2000. We have over 40 years of trading experience with Japanese major motorcycle company, automobile company, and so on. U-nuts are evaluated as high quality lock-nut in industrial world all over the world. U-nuts are produced from our direct managed factory in Japan and Asia.