HS 731816 Nuts
Quick Answer: Nuts imported under HS 731816 enter the UK duty-free, the EU at 3.70% ad valorem, and the US at rates ranging from Free to 0.5% ad valorem. This classification covers threaded fasteners with a nut, meaning a component with an internal thread designed to be screwed onto a bolt or screw. This includes common items like hex nuts, lock nuts, and wing nuts made of iron or steel. Importers should verify the specific subheadings within 731816 for precise duty rates in each jurisdiction, as variations exist. CustomTariffs aggregates this data, highlighting the importance of detailed classification for accurate customs declarations and duty payments.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7318163190 | 0.00 % | — | — |
| 7318163900 | 0.00 % | — | — |
| 7318163910 | 0.00 % | — | — |
| 7318164000 | 0.00 % | — | — |
| 7318164010 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7318163100 | 3.70 % | — | — |
| 7318163190 | 3.70 % | — | — |
| 7318163910 | 3.70 % | — | — |
| 7318164000 | 3.70 % | — | — |
| 7318164090 | 3.70 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 7318160015 | — | — | ["kg"] |
| 7318160045 | — | — | ["kg"] |
| 7318160085 | — | — | ["kg"] |
| 73181600 | Free | — | — |
| 7318160030 | — | — | ["kg"] |
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
How Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 731816 cover?
This subheading covers threaded iron or steel nuts, whether or not assembled with other articles. According to the World Customs Organization's Harmonized System Nomenclature, this includes hexagonal nuts, square nuts, and other shapes, provided they are designed to be used with bolts, screws, or studs for fastening. The USITC Harmonized Tariff Schedule (HTS) and the EU TARIC database confirm that these are typically made of common iron or steel and are characterized by their internal threading.
What falls outside HS 731816?
The following products are excluded from HS 731816: nuts made of precious metal or metal clad with precious metal, nuts of alloy steel or tool steel (which are classified under different headings), and nuts that are integral parts of a machine or apparatus and cannot be separated without damaging the article. For instance, a nut that is welded or permanently affixed as part of a manufactured assembly would not be classified here. Also excluded are washers, which are classified under HS 731822.
What are common classification mistakes for HS 731816?
A common error is misclassifying nuts made from materials other than common iron or steel, such as stainless steel (which may fall under other headings depending on specific composition and intended use) or non-ferrous metals. Another mistake involves confusing nuts with other threaded fasteners like bolts or screws, which are classified under HS 731815. Adherence to General Interpretative Rule 1 and Rule 3(b) is crucial to ensure correct classification based on the essential character of the goods.
How should importers classify products under HS 731816?
The correct procedure for classifying products under HS 731816 involves first identifying the material composition of the nut, confirming it is iron or steel. Next, verify that the item is a nut with internal threading intended for fastening. Importers and customs brokers should consult the relevant national tariff schedule, such as the USITC HTS or the UK Trade Tariff, and review the explanatory notes for Chapter 73 and Heading 7318 to confirm the scope and exclusions before declaring the goods.
How is the duty calculated for products under HS 731816?
A shipment of 10,000 M10 hexagonal steel nuts, declared at a customs value of $500 USD, would attract a US duty of $35.00. This is calculated using the Most Favored Nation (MFN) duty rate of 7.0% ad valorem, applied to the declared value ($500 USD × 0.07 = $35.00). This calculation is based on the rates published in the USITC Harmonized Tariff Schedule, which specifies the applicable duty for nuts of iron or steel.
Which trade agreements reduce duties for HS 731816?
Several free trade agreements may reduce the applicable duty rate for HS 731816, including the United States-Mexico-Canada Agreement (USMCA), which can provide for Free duty rates for qualifying goods originating from Canada or Mexico. The Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) may also offer preferential rates for originating goods from member countries. To claim these preferences, a valid USMCA Certificate of Origin or CPTPP Certificate of Origin is typically required, depending on the origin country and the specific agreement.
```Which HS Codes Are Related?
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FAQ
What are the import duty rates for HS code 731816 (Nuts)?
Import duty rates for HS code 731816 (Nuts) vary by country and trade agreement. For example, under the US tariff schedule, the Most Favored Nation (MFN) rate is 3.70% ad valorem. However, preferential rates may apply under trade agreements. For instance, goods originating from Canada or Mexico under USMCA may have a 0.00% duty rate. It is crucial to consult the specific tariff schedule of the importing country and confirm eligibility for any preferential treatment. Sources like the US International Trade Commission (USITC) provide detailed rate information.
What are the classification criteria for nuts under HS code 731816?
HS code 731816 covers 'Nuts' of iron or steel. This category includes fasteners with an internally threaded hole designed to be fitted on a bolt, screw, or stud to secure two or more parts together. The classification is based on the material (iron or steel) and the function as a nut. It excludes nuts of plastics or other non-metallic materials, as well as nuts that are part of a specific assembly or machine. Always ensure the product meets the definition of a 'nut' as per the Harmonized System Explanatory Notes.
What documentation is typically required for importing nuts under HS code 731816?
Standard documentation for importing nuts under HS code 731816 generally includes a commercial invoice, packing list, and bill of lading or air waybill. Depending on the importing country and the origin of the goods, a certificate of origin may be required, especially if claiming preferential duty rates under a trade agreement. Importers should also be prepared to provide product specifications or technical data sheets if requested by customs authorities to verify classification. Compliance with any specific import regulations or standards of the destination country is also essential.
How is the import duty calculated for nuts under HS code 731816?
The import duty for nuts under HS code 731816 is typically calculated on an ad valorem basis, meaning it is a percentage of the value of the goods. For example, if the MFN duty rate is 3.70% and you import nuts valued at $10,000 USD, the duty would be calculated as: $10,000 (Value) × 3.70% (Duty Rate) = $370 USD. Some tariffs may also include specific duties (per unit) or a combination of ad valorem and specific duties. It is critical to verify the exact duty calculation method and the declared value basis (e.g., CIF, FOB) used by the importing country's customs authority.
Which common trade agreements might affect the duty rates for HS code 731816?
Several trade agreements can significantly impact duty rates for HS code 731816. For example, the United States-Mexico-Canada Agreement (USMCA) often provides for duty-free treatment (0.00%) for qualifying goods originating from these North American countries. Similarly, the European Union's Generalized Scheme of Preferences (GSP) offers reduced or zero duties for goods from developing countries. Importers should investigate agreements such as the EU's trade deals with various nations, the UK's Global Tariff, or other bilateral and multilateral trade pacts relevant to the origin and destination of the nuts. Consulting official tariff databases like the EU's TARIC or the UK Trade Tariff is recommended.