HS Code 7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel

Q: Is HS code 7318 the same in every country?

Yes — HS code 7318 is part of the WCO Harmonized System and is the same in every WCO member country at the 6-digit level. Beyond 6 digits, each country extends the code under its own system (e.g. HTSUS in the US, CN/TARIC in the EU, HSK in Korea, CCCHS in China) for national tariff rates and trade statistics. To see how a specific country classifies this code, select a country.

Q: Which WCO edition does HS code 7318 belong to, and has it been reclassified?

The Harmonized System is maintained by the World Customs Organization (WCO) and revised approximately every five years. The current edition is HS 2022, which replaced HS 2017 on 1 January 2022. Codes are added, merged, or split between editions to reflect new products and trade patterns, so a code valid in one edition may not exist or may mean something different in another.

Q: How do I find the correct country-specific version of HS code 7318?

Beyond the international 6-digit level, each country adds its own digits — the US extends to 10 digits (HTSUS), the EU to 8 or 10 (CN/TARIC), China to 13 (CCCHS), Korea to 10 (HSK), Japan to 9, and so on. To find the full code used by a specific country, select a country in TradeInt's HS Code Tool and search for 7318.

What is HS Code 7318

HS Code 7318 covers Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel. It is a 4-digit heading within Chapter 73 (Articles of iron or steel), Section XV. Its 6-digit subheadings are identical in every HS-adopting country; from the 7th digit onward, each country extends the code for its own tariff and statistics.

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What does HS Code 7318 Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel Cover?

Section XV

Chapters (72-83) Base metals and articles of base metal

Chapter 73

Articles of iron or steel

HS Code 7318

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel

HS Code 731811

Iron or steel; threaded coach screws

HS Code 731812

Iron or steel; threaded wood screws other than coach screws

HS Code 731813

Iron or steel; threaded screw hooks and screw rings

HS Code 731814

Iron or steel; threaded self-tapping screws

HS Code 731815

Iron or steel; threaded screws and bolts n.e.c. in item no. 7318.1, whether or not with their nuts or washers

HS Code 731816

Iron or steel; threaded nuts

HS Code 731819

Iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1

HS Code 731821

Iron or steel; non-threaded spring washers and other lock washers

HS Code 731822

Iron or steel; non-threaded washers, excluding spring and lock

HS Code 731823

Iron or steel; non-threaded rivets

HS Code 731824

Iron or steel; non-threaded cotters and cotter-pins

HS Code 731829

Iron or steel; non-threaded articles, n.e.c. in item no. 7318.2

Click any HS code above to see live 2026 latest Steel Screws and Bolts trade data including exporters, importers, and shipment volumes.

What HS Codes for Iron and Steel Articles Do Not Cover

Chapter 73 covers articles of iron or steel — tubes, fittings, structures, hardware. Goods frequently misclassified here but that belong elsewhere include:

Machinery and mechanical appliances

Chapter 84

Tools and cutlery

Chapter 82

Vehicle parts

Chapter 87

Furniture of steel

Chapter 94

This list highlights common classification errors only — it is not exhaustive. For binding classification, work with a licensed customs broker or qualified trade compliance professional.

Related HS Codes under Steel Screws and Bolts HS 7318

HS Code 731811

Iron or steel; threaded coach screws

HS Code 731812

Iron or steel; threaded wood screws other than coach screws

HS Code 731813

Iron or steel; threaded screw hooks and screw rings

HS Code 731814

Iron or steel; threaded self-tapping screws

HS Code 731815

Iron or steel; threaded screws and bolts n.e.c. in item no. 7318.1, whether or not with their nuts or washers

HS Code 731816

Iron or steel; threaded nuts

HS Code 731819

Iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1

HS Code 731821

Iron or steel; non-threaded spring washers and other lock washers

HS Code 731822

Iron or steel; non-threaded washers, excluding spring and lock

HS Code 731823

Iron or steel; non-threaded rivets

Frequently Asked Questions

What is HS code 7318?

HS code 7318 covers Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel, a heading within Chapter 73 (Articles of iron or steel) of the WCO Harmonized System. Headings sit between the broad chapter level and the more specific 6-digit subheading level.

Is HS code 7318 the same in every country?

Which WCO edition does HS code 7318 belong to, and has it been reclassified?

How do I find the correct country-specific version of HS code 7318?