Product classification
HS code for Copper bolts: 7415.33
Copper, screws, bolts and nuts, threaded.
Classification of copper bolts under HS 7415.33
Copper bolts are categorized under HS code 7415.33, which specifically covers threaded screws, bolts, and nuts made of copper. The classification is determined by two primary factors: the material composition and the presence of internal or external threading. Under the Harmonized System, fasteners are grouped by their base metal, and copper-based fasteners, including those made from brass or bronze alloys, fall under heading 7415. The subheading 7415.33 is reserved for those items that are threaded, distinguishing them from non-threaded fasteners like nails or rivets. These bolts are typically used in environments where corrosion resistance or high electrical conductivity is required, such as in marine applications, electrical switchgear, or chemical processing plants. The classification remains consistent regardless of the specific head shape, such as hexagonal, square, or round, as long as the primary function is that of a threaded bolt. It is important to ensure that the alloy used is predominantly copper by weight to maintain this classification.
- Covers
- Hexagonal head copper bolts
- Threaded copper studs
- Brass carriage bolts
- Bronze heavy-duty bolts
- Copper alloy machine screws
- Also under 7415.33
- McMaster-Carr copper screws
- Fastenal copper bolts
- Hillman copper nuts
- Dorman copper machine screws
- Bosch copper electrical connectors
Codes often confused with 7415.33
Common mistake. Copper bolts are often misclassified under HS code 7318, which is the heading for iron or steel bolts. Importers must verify the base metal composition to avoid this error. Another common mistake is using HS code 7415.21, which is reserved for non-threaded copper nails and tacks, or HS code 7415.39, which is a residual category for other threaded copper articles that do not meet the specific definition of a bolt or screw.
Top exporters and importers of HS 741533 (the code used for copper bolts), 2025
In 2025, the largest exporter of HS 741533 (the code used for copper bolts) in UN Comtrade data was China, with 21% of world exports; the largest importer in UN Comtrade data was the United States, with 10% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 741533, not only copper bolts.
Top exporters 2025 · share of world exports
- 1 China $130M 21% of world exports
- 2 Germany $82M 14% of world exports
- 3 Italy $74M 12% of world exports
World total: $608M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $70M 10% of world imports
- 2 Germany $64M 9.2% of world imports
- 3 Mexico $60M 8.6% of world imports
World total: $701M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for copper bolts
Brazil classifies copper bolts under NCM 7415.33.00: HS 7415.33 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about copper bolts
What is the HS code for Copper bolts?
The HS code for Copper bolts is 741533 (Copper; screws, bolts and nuts, threaded). The HS code for threaded copper bolts, screws, and nuts is 7415.33.
How do I classify Copper bolts for customs?
Copper bolts is classified under HS code 741533 — Copper; screws, bolts and nuts, threaded. This is a 6-digit subheading level code.
Are brass bolts classified under the same HS code as copper bolts?
Yes, because brass is a copper alloy, brass bolts are classified under HS code 7415.33 along with pure copper bolts.
Which countries are the top exporters of copper bolts (HS 741533)?
In 2025, the top exporters of HS 741533 (the code used for copper bolts) in UN Comtrade data were China ($130M, 21% of world exports), Germany ($82M) and Italy ($74M). World exports came to about $608M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of copper bolts (HS 741533)?
In 2025, the top importers of HS 741533 (the code used for copper bolts) in UN Comtrade data were the United States ($70M, 10% of world imports), Germany ($64M) and Mexico ($60M). World imports came to about $701M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Copper bolts the same in all countries?
The base HS code 741533 for Copper bolts is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for copper bolts in Brazil?
In Brazil, copper bolts (HS 741533) is classified under NCM 7415.33.00.