M6 x 50mm Zinc-Plated Steel Machine Screw from China
A cylindrical headed fastener with a uniform external thread, measuring 50mm in length and 6mm in diameter, made from carbon steel with zinc plating for corrosion resistance. It qualifies under HTS 7318.15.4000 as a machine screw exceeding 9.5mm length and 3.2mm diameter, excluding cap screws. Commonly used in machinery assembly for secure threading into tapped holes.
Duty Rate — China → United States
35%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Verify exact dimensions and thread pitch match machine screw specs to avoid reclassification as wood screws under 7318.12
• Include material test certificates proving iron/steel composition and plating type for customs valuation
• Label shipments clearly distinguishing from cap screws to prevent misclassification under 7318.15.20