Harmonized Tariff Schedule of the United States · HTS code · HS 7318.16
7318.16.00: Screws, bolts, nuts, coach screws, screw hooks, rivets: threaded articles, nuts
Steel nuts
Not declarable on its own: use one of its 5 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 7318 Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel:
- Threaded articles:
- 7318.16.00 Nuts
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 5
- Additional dutySection 232 — Steel, aluminium, copper and derivatives 50%
- Applies to goods from
- all countries except United Kingdom, Russia
- In force
- from 6 April 2026
- Legal act
- HTSUS 9903.82.02
- Additional dutySection 232 — Steel, aluminium, copper and derivatives 25%
- Applies to goods from
- United Kingdom
- In force
- from 6 April 2026
- Legal act
- HTSUS 9903.82.04
- Additional dutySection 232 — Steel, aluminium, copper and derivatives 50%
- Applies to goods from
- Russia
- In force
- from 6 April 2026
- Legal act
- HTSUS 9903.82.14
- Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 7.5%
- Applies to goods from
- China
- In force
- from 1 September 2019
- Legal act
- HTSUS 9903.88.15
- Additional dutyRussia rate increase (Pub. L. 117-110) — Russian Federation (rates in lieu of column 2) 70%
- Applies to goods from
- Russia
- Legal act
- HTSUS 9903.90.09
Subdivisions
- 7318.16.00 Nuts Free
- 7318.16.00.15 Non-locking chrome-plated kg
- 7318.16.00.30 Locking kg
- 7318.16.00.45 Other kg
- 7318.16.00.60 Of stainless steel kg
- 7318.16.00.85 Other kg
Footnotes
- 9903.90.09 Articles the product of the Russian Federation, as provided for in U.S. note 30(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(d) to this subchapter
Same subheading in other tariffs
7318.16 Screws, bolts, nuts, coach screws, screw hooks, rivets: threaded articles, nuts
UK Free Third-country duty 12 tariff lines 
EU 3.7% Third-country duty 6 tariff lines 
Türkiye 3.7% Third-country duty 6 tariff lines 
Canada Free Third-country duty 2 tariff lines 
Mexico 35% Third-country duty 5 tariff lines 
Brazil 16% Third-country duty 1 tariff line 
Argentina 25% Third-country duty 10 tariff lines 
Peru 6% Third-country duty 1 tariff line 
New Zealand 5% Third-country duty 4 tariff lines 
Japan 2.8% Third-country duty 2 tariff lines 
Taiwan 5% Third-country duty 1 tariff line 
GCC 5% Third-country duty 2 tariff lines 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia 3.7% – 15% Third-country duty 7 tariff lines · average 10% 
Nigeria 20% Third-country duty 1 tariff line Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N365426 U.S. CBP
The tariff classification of a steel lug nut from Thailand
- N357577 U.S. CBP
The tariff classification of a stainless-steel lock nut from Germany
- N349423 U.S. CBP
The tariff classification of steel wheel nuts and flange bolts from Mexico
- N348843 U.S. CBP
The tariff classification of a steel loop nut and J-bolt from India
- H326279 U.S. CBP
Protest and Application for Further Review No 4501-21-103251; Classification of Educational Robot Kit Parts
- H240506 U.S. CBP
Application for Further Review of Protest No. 0712-13-100009; Classification of SuperSand Filter Components
- H330412 U.S. CBP
Internal Advice Request; Classification of Certain Items Related to a Casing Oscillator
- N337636 U.S. CBP
The tariff classification of stainless steel internally threaded fixtures from China
Legal notes
HTS code 7318.16.00 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 7318.16 (screws, bolts, nuts, coach screws, screw hooks, rivets: threaded articles, nuts).
The general duty is free.
5 statistical sub-lines below it are used in the declaration.
For the same subheading, the UK duty is free, the EU duty is 3.7%, the Türkiye duty is 3.7%, the Canada duty is free, the Mexico duty is 35%, the Brazil duty is 16%, the Argentina duty is 25%, the Peru duty is 6%, the New Zealand duty is 5%, the Japan duty is 2.8%, the Taiwan duty is 5%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 3.7%–15% and the Nigeria duty is 20%.
The United States imported goods of subheading 7318.16 worth US$2bn in 2024; the largest supplier was Taiwan.
Questions and answers
What is the USA import duty for HTS code 7318.16.00?
The general duty in the Harmonized Tariff Schedule of the United States is free. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 7318.16 as a whole, the largest supplier in 2024 was Taiwan (US$460m), followed by China.
Typical products
Everyday names, not part of the legal text.