Constant Force Spring from Mexico
A pre-stressed steel strip spring providing near-constant force over travel distance, used in retractable cords or tape measures. Falls under HTS 7320.90.50.60 as other iron or steel springs due to its unique design not matching leaf or vehicle types.
Duty Rate — Mexico → United States
52.9%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Specify if strip-formed from sheet steel vs. wire to confirm Chapter 73 scope
• Provide engineering drawings showing spring function for valuation