Harmonized Tariff Schedule of the United States · HTS code · HS 7318.15
7318.15.50: Other screws and bolts, whether or not with their nuts: studs
Other steel screws and bolts
Not declarable on its own: use one of its 4 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:
- 7318.15 Other screws and bolts, whether or not with their nuts or washers:
- 7318.15.50 Studs
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 4
- 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) 25%
- Applies to goods from
- China
- In force
- from 24 September 2018
- Legal act
- HTSUS 9903.88.03
Subdivisions
- 7318.15.50 Studs Free
- 7318.15.50.30 Of stainless steel kg
- 7318.15.50.51 Of alloy steel kg
- 7318.15.50.56 Other kg
- 7318.15.50.90 Other kg
Same subheading in other tariffs
7318.15 Other screws and bolts, whether or not with their nuts or washers
UK Free Third-country duty 28 tariff lines 
EU 3.7% Third-country duty 12 tariff lines 
Türkiye 3.7% Third-country duty 16 tariff lines 
Canada Free Third-country duty 4 tariff lines 
Mexico 35% Third-country duty 11 tariff lines 
Brazil 16% Third-country duty 1 tariff line 
Argentina 25% Third-country duty 28 tariff lines 
Peru Free – 6% Third-country duty 2 tariff lines · average 3% 
New Zealand 5% Third-country duty 14 tariff lines 
Japan 2.8% Third-country duty 3 tariff lines 
Taiwan 5% Third-country duty 2 tariff lines 
GCC 5% Third-country duty 1 tariff line 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia 3.7% – 10% Third-country duty 15 tariff lines · average 6.5% 
Nigeria 20% Third-country duty 1 tariff line USA lines: 7318.15
- 7318.15.20Bolts and bolts and their nuts or washers entered or exported in the same shipment
- 7318.15.40Machine screws 9.5 mm or more in length and 3.2 mm or more in diameter (not including cap screws)
- 7318.15.50Other screws and bolts, whether or not with their nuts: studs
- 7318.15.60Having shanks or threads with a diameter of less than 6 mm
- 7318.15.80Having shanks or threads with a diameter of 6 mm or more
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.
- N354623 U.S. CBP
The tariff classification of a Cylinder Head Stud Kit from India
- N353898 U.S. CBP
The tariff classification of a carbon steel stud from Taiwan
- N352654 U.S. CBP
The country of origin of steel threaded rod
- N348224 U.S. CBP
The tariff classification of a steel hanger bolt from Taiwan
- H240506 U.S. CBP
Application for Further Review of Protest No. 0712-13-100009; Classification of SuperSand Filter Components
- H332598 U.S. CBP
Modification of NY N331989; tariff classification of steel assembly hardware sets from Vietnam
- N318247 U.S. CBP
The tariff classification of a threaded fastener from Taiwan.
- N316922 U.S. CBP
The tariff classification of stainless steel and plastic concrete anchor products from China
Legal notes
HTS code 7318.15.50 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 7318.15 (other screws and bolts, whether or not with their nuts or washers).
The general duty is free.
4 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 0%–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%–10% and the Nigeria duty is 20%.
The United States imported goods of subheading 7318.15 worth US$3bn in 2024; the largest supplier was Taiwan.
Questions and answers
What is the USA import duty for HTS code 7318.15.50?
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 7318.15 as a whole, the largest supplier in 2024 was Taiwan (US$756m), followed by China.