M12 High-Carbon Steel Helical Spring Lock Washer from China
An M12 high-carbon steel helical spring lock washer, heat-treated for maximum elasticity in heavy equipment. It prevents fastener rotation under dynamic loads. This non-threaded spring washer is classified under tariff item 7318.21.00.
Duty Rate — China → Canada
0%
Import Tips
• Document the heat treatment process on the product specification sheet to support classification
• Ensure the high-carbon steel composition is accurately declared for customs purposes
• Check if the washers are subject to any anti-dumping or countervailing duties