Strongly bonded with metal and rubber through vulcanization! Sizes available from M1 to M20.
In fastening, there are many cases where the flexibility and adhesion of rubber are utilized to provide sealing or cushioning functions. However, since rubber alone cannot maintain strength, backup and holding power from metal washers are necessary, which affects cost performance. The "Leak-Proof Washer" has a strong adhesive force due to the vulcanized bonding of metal and rubber, resulting in minimal rubber escape during fastening. This prevents rubber from being caught in the threaded part, maintaining high sealing performance, as well as providing various functions such as vibration resistance, loosening prevention, shock absorption, surface scratch prevention, and insulation. Additionally, in relation to this product, Azuma Screw also offers "Leak-Proof Screws (Nuts)." 【Features】 ■ Strong adhesion of metal and rubber through vulcanized bonding ■ Material: Metal part (stainless steel), rubber part (neoprene, EPDM, etc.) ■ Size: M1 to M20 *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【Size Lineup (Excerpt)】 ■M1 ■M1.2 ■M1.4 ■M2.6 ■M3 ■M4 ■M5 ■M6, 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 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 historic 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 our partners. 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) certification.