Copper Adjusting Screws from United States
Fine thread adjusting screws made from copper, used in optical instruments and precision equipment for fine adjustment. These have a small diameter and fine pitch thread. They are classified as other threaded articles of copper under this tariff item.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the screws are made of copper or a copper alloy, not plated steel
• Provide the thread pitch and diameter on the commercial invoice
• If the screws are part of an optical instrument, verify whether they are classified as parts of that instrument under Section XVIII