Copper Adjusting Screws
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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the adjusting screws are imported as parts of optical instruments.
Parts of optical instruments may be classified under Chapter 90.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• 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
Related Products under Tariff item 7415.39.00
Brass Cap Screws
Socket cap screws made from brass, a copper-zinc alloy. These are threaded fasteners with a cylindrical head and internal hex drive, used in applications requiring a smooth, low-profile fastening solution. They are classified as other threaded articles of copper alloy under this tariff item.
Brass Expansion Bolts
Threaded expansion anchors made from brass, used to secure fixtures into masonry, concrete, or brick. These consist of a threaded bolt and an expanding sleeve that grips the base material when tightened. They are classified as other threaded articles of copper alloy under this tariff item.
Brass Lag Thread Screws
Heavy-duty lag screws made from brass with coarse threading, designed for wood applications in marine or corrosive environments. These have a hex head and a gimlet point for easy insertion into wood. They are classified as other threaded articles of copper alloy, distinct from wood screws due to their heavy-duty design.
Brass Threaded Eye Bolts
Eye bolts made from brass (copper-zinc alloy), featuring a threaded shank and a looped eye for rigging, suspension, or lifting applications. These are used in marine, architectural, and industrial settings where corrosion resistance is needed. They are classified as other threaded articles of copper alloy under this tariff item.
Brass Threaded Inserts
Threaded inserts made from brass, designed to be embedded into plastic or wood to provide a durable threaded hole. These have external threads and an internal thread for receiving a screw. They are classified as other threaded articles of copper alloy under this tariff item.
Bronze Threaded Pins
Threaded pins made from bronze (copper-tin alloy), used as cotter pin alternatives in applications requiring vibration resistance and corrosion resistance. These have a threaded portion for secure fastening. They are classified as other threaded articles of copper alloy under this tariff item.