Muntz Metal Marine Propeller Bolt from Mexico
A heavy-duty bolt made from Muntz metal (copper-zinc alloy with approximately 60% copper and 40% zinc), specifically designed for securing marine propellers to boat shafts. It falls under HTS 7415.33.10.00 as a Muntz metal bolt, valued for its corrosion resistance in saltwater environments typical of marine applications.
Duty Rate — Mexico → United States
51.4%
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
• Verify alloy composition meets Muntz metal definition (zinc >40%, copper predominant, no more than 1% lead) with mill certificates to avoid reclassification
• Include documentation proving maritime end-use if applicable for potential duty reductions under certain trade agreements