Corrosion-Resistant Ball Screw for Marine Winches from China
Duplex stainless steel ball screw with bronze nut for anchor winches and davit systems on offshore vessels. Saltwater corrosion resistance per ASTM standards, HTS 8483.40.80.00.
Duty Rate — China → United States
41.3%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 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(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Include material test reports (UNS S31803 duplex SS) and salt spray test results
• Document IP67 sealing and marine classification society approvals (ABS/DNV)
• Specify self-locking lead angle for safety-critical marine applications