Slotted Spring Lock Washer USS Size 1/2 from Mexico
Carbon steel washer with slotted helical design for superior vibration resistance per USS standards. Non-threaded spring lock washer under HTS 7318.21.00. Standard for HVAC and plumbing fixtures.
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
• Reference USS/SAE specifications in import docs for standard recognition
• Plating type (e.g
• yellow zinc) must match invoice descriptions exactly
• Prevent co-mingling with metric sizes for accurate statistical reporting