M10 External Tooth Lock Washer from Mexico
Steel washer with radially stamped teeth that bite into mating surfaces for locking. Non-threaded design places it under HTS 7318.21.00 as a spring lock washer. Prevents rotation in electrical and appliance assemblies.
Duty Rate — Mexico → United States
15.8%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include bite force specifications to differentiate from plain washers
• Mark country of origin clearly on packaging for steel product origin rules
• Avoid 'kit' declarations with screws; import as standalone to maintain classification