Safety, no special tools required, maintenance and inspection possible! Sizes available from M3 to M42.
The "NORD-LOCK washer" is a loosening prevention washer that secures bolts using tension rather than friction resistance. This system consists of a pair of washers, one with a cam surface and the other with a radial rib surface. The angle of the cam (α) is designed to be larger than the lead angle of the screw (β), making it difficult to easily overcome the cam. This creates a wedging effect between the cam surfaces, preventing loosening of the bolt due to rotation. 【Features】 ■ Prevents loosening caused by intense vibrations and fluctuating loads, ensuring safe fastening. ■ Can be quickly and easily installed and removed with standard tools. *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【Size Lineup (Excerpt)】 ■M3 ■M4 ■M5 ■M6 ■M8 ■M10 ■M11 ■M12, etc. *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
[Applications] ■Automobiles, construction machinery, railways, heavy electrical equipment, low-voltage electrical equipment, construction, fixtures, plants, etc. *For more details, please refer to the PDF document or feel free to contact us.*
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Company information
Azuma Neji is a long-established trading company based in Sumida Ward, Tokyo, that develops business in collaboration with its affiliated company in Hanoi, Vietnam. The business, which started with the sale of screws, has expanded into a wide range of areas, including the sale of metal processing parts through molding, cutting, and joining, as well as services related to fastening technology. In addition to buying and selling products and services, we also take on roles in development, production, and manufacturing in partnership with others. Moving forward, we aim to contribute to the development of industry through "screws and fastening," coexist with the environment, and become a company that is truly needed by society, working sincerely and diligently. Azuma Neji has obtained ISO 9001 (Quality Management System) and ISO 14001 (Environmental Management System) certifications.