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Steel screws and bolts tariff & import duty from China to the USA (2026) — HTS 7318.15.50.51
75%
HTS code 7318.15.50.51 · Steel screws and bolts · origin China · data as of 2026-11-02
A shipment of steel screws and bolts entering the United States from China is classified under HTS code 7318.15.50.51 and pays 75% total import duty on its customs value. That is the 0% normal (MFN) rate plus Section 232 and Section 301, each of which is a separate heading in Chapter 99 of the tariff schedule. The duty is worked out on the customs value of the goods, which is normally what you paid for them; freight, insurance, customs brokerage and any merchandise processing fee come on top and are not included in the figure above.
Import duty calculator
How the rate is built up
| Layer | Heading | Rate | As the schedule words it |
|---|---|---|---|
| Normal duty (MFN, column 1-General) | 7318.15.50.51 | 0% | Free |
| Section 232 (steel / aluminium / copper) | 9903.82.02 | 50% | The duty provided in the applicable subheading + 50% |
| Section 301 (China) | 9903.88.03 | 25% | The duty provided in the applicable subheading + 25% |
| Exempt from the forced-labor Section 301 duty | 9903.05.90 | 0% | No additional duty |
| Total | 75% | ||
Common ways this question is asked
- What is the tariff on steel screws and bolts from China? 75% of the customs value, all layers included.
- What is the HTS code for steel screws and bolts?
7318.15.50.51. - How much is the import tax from China to the USA on steel screws and bolts? The table above shows every duty that applies and the heading each one comes from.
- Who pays it? The importer of record pays the duty to CBP at entry, not the seller abroad.
What each of these duties is
Normal duty (MFN, column 1-General)
The normal duty is the column 1-General rate the Harmonized Tariff Schedule sets for this code. Every country the United States trades with normally pays it unless a trade agreement or a preference programme says otherwise.
Section 232 (steel / aluminium / copper)
Section 232 covers steel, aluminium and copper on national-security grounds. It applies to the metal content and is charged whatever the origin is.
Section 301 (China)
Section 301 is the extra duty on goods of Chinese origin that sits on top of the normal rate. Which list a code falls on is set out in the Chapter 99 headings.
Exempt from the forced-labor Section 301 duty
This code is exempt from the forced-labor Section 301 duty, so that layer adds nothing here.
What the code rests on
Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: > Threaded articles: > Other screws and bolts, whether or not with their nuts or washers: > Studs > Other: > Continuously threaded rod: > Of alloy steel
Sources
Other origins
- Steel screws and bolts · Vietnam
- Steel screws and bolts · India
- Steel screws and bolts · Mexico
- Steel screws and bolts · the European Union
This page is information, not legal or customs advice. The final classification and the duty owed are decided by U.S. Customs and Border Protection at entry. All products · Classify a whole list (free during beta) · Duty by country: report and data
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