Cast Steel Hex Union Nut Assembly 1 Inch from Mexico
Complete 1-inch cast steel union with hexagonal nuts for wrench tightening. Classified HTS 7307.19.90.30 as union fittings; assembly imported together. For heavy-duty hydraulic lines.
Duty Rate — Mexico → United States
16.2%
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
• Declare as complete union, not separate nuts to maintain fitting classification
• Hex size standardization prevents customs disputes on dimensions
• Pressure test certificates validate high-pressure claims