Nitrided Single Screw for Thermoset Plastic Profiles from China
A nitrided steel single screw optimized for extruding thermosetting plastics like phenolic resins into profiles for electrical insulation. Classified under HTS 8477.20.00.05 due to its use in thermoset material processing equipment. The nitriding enhances wear resistance for high-temperature, abrasive thermoset extrusion.
Duty Rate — China → United States
38.1%
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
9903.88.0125%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
• Provide heat treatment certificates proving nitriding for thermoset durability to support 8477 classification
• Declare processing temperature ratings (>200°C for thermosets) in invoices to distinguish from thermoplastic screws
• Avoid common pitfalls by bundling with full extruder assembly docs if imported as replacement part