Hong Kong, China Special Administrative Region HS Code

HS Code 731821: Nonthreaded articles : Spring washers and other lock washers in Hong Kong, China Special Administrative Region

Q: Is HS code 731821 the same across all countries?

Yes — up to the 6-digit level, HS code 731821 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. Hong Kong, China Special Administrative Region extends it under HKHS.

Q: What system does Hong Kong, China Special Administrative Region use to classify HS code 731821?

Hong Kong, China Special Administrative Region classifies products under the Hong Kong Harmonized System (HKHS; locally 香港協調制度), which extends HS codes to 8 digits. The first 6 digits align with the WCO Harmonized System, and the rest cover national tariff and statistical needs.

Q: Where can I officially look up HS code 731821 in Hong Kong, China Special Administrative Region?

The official source is https://www.customs.gov.hk/en/home/index.html. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 731821 in Hong Kong, China Special Administrative Region

Under Hong Kong, China Special Administrative Region's Hong Kong Harmonized System (香港協調制度), HS Code 731821 is the WCO Harmonized System subheading for Nonthreaded articles : Spring washers and other lock washers. This is the most detailed internationally standardized level; Hong Kong, China Special Administrative Region extends classifications to 8 digits under its national tariff system. 731821 belongs to Section XV: Base metals and articles of base metal, Chapter 73: Articles of iron or steel, Heading 7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel.

Explore more 2026 Latest Hong Kong, China Special Administrative Region import export trade data and shipment records for HS Code Spring and Lock Washers on TradeInt global trade data platform

Classification Path of HS Code 731821 in Hong Kong, China Special Administrative Region

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 731821

Nonthreaded articles : Spring washers and other lock washers

HS Code 73182100

SPRING WASHERS AND OTHER LOCK WASHERS, OF IRON OR STEEL 彈簧墊圈及其他防鬆墊圈，鋼鐵製

Hong Kong, China Special Administrative Region Tariff Classification: Hong Kong Harmonized System (HKHS)

In Hong Kong, China Special Administrative Region, HS 731821 is classified under the Hong Kong Harmonized System (香港協調制度) — a 8-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Hong Kong Harmonized System (HKHS)

Local name 香港協調制度

Digits 8

Official source https://www.customs.gov.hk/en/home/index.html

You know what 731821 means. Now see 2026 latest real trade activity for Spring and Lock Washers in Hong Kong, China Special Administrative Region.

Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.

Search 2026 Latest Hong Kong, China Special Administrative Region Import Data Search 2026 Latest Hong Kong, China Special Administrative Region Export Data

Top Trading Product of HS Code 7318

Top Hong Kong, China Special Administrative Region import Product Under HS Code 7318

1 731815: Threaded articles : Other screws and bolts, whether or not with their nuts or washers $105.4M 2 731819: Threaded articles : Other $34.7M 3 731811: Threaded articles : Coach screws $25.7M

Figures shown for 2025.

For more 2026 recent data, search for Hong Kong, China Special Administrative Region import trade records

Top Hong Kong, China Special Administrative Region export Product Under HS Code 7318

1 731815: Threaded articles : Other screws and bolts, whether or not with their nuts or washers $153.6M 2 731816: Threaded articles : Nuts $25.6M 3 731823: Nonthreaded articles : Rivets $19.6M

Figures shown for 2025.

For more 2026 recent data, search for Hong Kong, China Special Administrative Region export trade records

Related HS Code to Hong Kong, China Special Administrative Region Spring and Lock Washers (731821)

HS Code 73182100

SPRING WASHERS AND OTHER LOCK WASHERS, OF IRON OR STEEL

HS Code 731811

Threaded articles : Coach screws

HS Code 731812

Threaded articles : Other wood screws

HS Code 731813

Threaded articles : Screw hooks and screw rings

HS Code 731814

Threaded articles : Selftapping screws

HS Code 731815

Threaded articles : Other screws and bolts, whether or not with their nuts or washers

HS Code 731816

Threaded articles : Nuts

HS Code 731819

Threaded articles : Other

HS Code 731822

Nonthreaded articles : Other washers

HS Code 731823

Nonthreaded articles : Rivets

Frequently Asked Questions

What is HS code 731821 in Hong Kong, China Special Administrative Region?

HS code 731821 covers Nonthreaded articles : Spring washers and other lock washers in Hong Kong, China Special Administrative Region. It sits in Chapter 73 (Articles of iron or steel), Heading 7318 of the Harmonized System, and is classified under HKHS.

Is HS code 731821 the same across all countries?

What system does Hong Kong, China Special Administrative Region use to classify HS code 731821?

Where can I officially look up HS code 731821 in Hong Kong, China Special Administrative Region?