HS Code for Copper washers

Copper washers are classified under HS code 741521. This code is situated within Heading 7415, which covers a broad range of copper fasteners and similar articles, including nails, tacks, drawing pins, staples, bolts, and nuts. Specifically, the sub-heading 741521 is dedicated to non-threaded washers, including spring washers and other types of locking washers. The classification is determined by the material composition (copper or copper alloys) and the mechanical nature of the item (non-threaded). Washers are used to distribute the load of a threaded fastener or to provide a seal or spacing. Because copper is non-magnetic and resistant to corrosion, these washers are frequently used in electrical and marine applications. The HS system groups these by material rather than function, so even if a washer is used in an engine, its material composition as copper dictates its placement in Chapter 74.

Products Included

• Flat copper washers
• Copper spring washers
• Copper split lock washers
• Copper sealing washers for fuel injectors

Common Misclassification

Copper washers are often confused with steel or iron washers, which are classified under HS code 731822. They may also be misclassified under 741533 if they are part of a threaded assembly, though 741521 is strictly for the non-threaded washer component. If the washer is made of a copper-zinc alloy (brass), it still remains in 7415 but must be checked against specific alloy subheadings if applicable in local tariffs.

FAQ

What is the HS code for copper washers?

The HS code for non-threaded copper washers (including spring washers) is 741521.

Are brass washers classified under the same code?

Yes, Heading 7415 covers both refined copper and copper alloys (like brass), so brass washers are also classified under 741521.