Thailand HS Code

HS Code 731821: Nonthreaded articles : Spring washers and other lock washers in Thailand

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. Thailand extends it under AHTN-TH.

Q: What system does Thailand use to classify HS code 731821?

Thailand classifies products under the ASEAN Harmonized Tariff Nomenclature 2022 — Thai Customs Tariff (AHTN-TH; locally พิกัดอัตราศุลกากร (AHTN 2022)), which extends HS codes to 11 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 Thailand?

The official source is https://www.customs.go.th/. 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 Thailand

Under Thailand's ASEAN Harmonized Tariff Nomenclature 2022 — Thai Customs Tariff (พิกัดอัตราศุลกากร (AHTN 2022)), 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; Thailand extends classifications to 11 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 Thailand 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 Thailand

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 73182100000

Spring washers and other lock washers แหวนสปริงและแหวนล็อกอื่น ๆ

Thailand Tariff Classification: ASEAN Harmonized Tariff Nomenclature 2022 — Thai Customs Tariff (AHTN-TH)

In Thailand, HS 731821 is classified under the ASEAN Harmonized Tariff Nomenclature 2022 — Thai Customs Tariff (พิกัดอัตราศุลกากร (AHTN 2022)) — a 11-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule ASEAN Harmonized Tariff Nomenclature 2022 — Thai Customs Tariff (AHTN-TH)

Local name พิกัดอัตราศุลกากร (AHTN 2022)

Digits 11

Official source https://www.customs.go.th/

You know what 731821 means. Now see 2026 latest real trade activity for Spring and Lock Washers in Thailand.

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

Search 2026 Latest Thailand Import Data Search 2026 Latest Thailand Export Data

Top Trading Product of HS Code 7318

Top Thailand import Product Under HS Code 7318

1 731815: Threaded articles : Other screws and bolts, whether or not with their nuts or washers $524.0M 2 731816: Threaded articles : Nuts $182.2M 3 731822: Nonthreaded articles : Other washers $181.2M

Figures shown for 2025.

For more 2026 recent data, search for Thailand import trade records

Top Thailand export Product Under HS Code 7318

1 731815: Threaded articles : Other screws and bolts, whether or not with their nuts or washers $384.8M 2 731819: Threaded articles : Other $71.9M 3 731816: Threaded articles : Nuts $64.8M

Figures shown for 2025.

For more 2026 recent data, search for Thailand export trade records

Related HS Code to Thailand Spring and Lock Washers (731821)

HS Code 73182100000

Spring washers and other lock washers

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 Thailand?

HS code 731821 covers Nonthreaded articles : Spring washers and other lock washers in Thailand. It sits in Chapter 73 (Articles of iron or steel), Heading 7318 of the Harmonized System, and is classified under AHTN-TH.

Is HS code 731821 the same across all countries?

What system does Thailand use to classify HS code 731821?

Where can I officially look up HS code 731821 in Thailand?