Nitrided Single Screw for Thermoset Plastic Profiles from Canada
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 — Canada → United States
13.1%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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