Sao Tome and Principe HS Code

HS Code 731821: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel : Nonthreaded articles : Spring washers and other lock washers in Sao Tome and Principe

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. Sao Tome and Principe extends it under HS-ST.

Q: What system does Sao Tome and Principe use to classify HS code 731821?

Sao Tome and Principe classifies products under the Pauta Aduaneira (HS-ST; locally Pauta Aduaneira), 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 Sao Tome and Principe?

The official source is https://www.alfandegas.gov.st/. 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 Sao Tome and Principe

Under Sao Tome and Principe's Pauta Aduaneira (Pauta Aduaneira), HS Code 731821 is the WCO Harmonized System subheading for Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel : Nonthreaded articles : Spring washers and other lock washers. This is the most detailed internationally standardized level; Sao Tome and Principe 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 Sao Tome and Principe 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 Sao Tome and Principe

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

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

HS Code 73182100

Parafusos, pinos ou pernos, roscados, porcas, tira-fundos, ganchos roscados, rebites, chavetas, cavilhas, contrapinos ou troços, anilhas (arruelas) (incluindo as de pressão) e artigos semelhantes, de ferro fundido, ferro ou aço: Artigos não roscados: Anilhas (Arruelas) de pressão e outras anilhas (arruelas) de segurança

Sao Tome and Principe Tariff Classification: Pauta Aduaneira (HS-ST)

In Sao Tome and Principe, HS 731821 is classified under the Pauta Aduaneira (Pauta Aduaneira) — a 8-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Pauta Aduaneira (HS-ST)

Local name Pauta Aduaneira

Digits 8

Official source https://www.alfandegas.gov.st/

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

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

Search 2026 Latest Sao Tome and Principe Import Data Search 2026 Latest Sao Tome and Principe Export Data

Top Trading Product of HS Code 7318

Top Sao Tome and Principe import Product Under HS Code 7318

1 731815: Threaded articles : Other screws and bolts, whether or not with their nuts or washers $83.4K 2 731829: Nonthreaded articles : Other $26.0K 3 731816: Threaded articles : Nuts $14.9K

Figures shown for 2023.

For more 2026 recent data, search for Sao Tome and Principe import trade records

Top Sao Tome and Principe export Product Under HS Code 7318

1 731821: Nonthreaded articles : Spring washers and other lock washers $528

Figures shown for 2023.

For more 2026 recent data, search for Sao Tome and Principe export trade records

Related HS Code to Sao Tome and Principe Spring and Lock Washers (731821)

HS Code 73182100

HS Code 731811

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

HS Code 731812

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

HS Code 731813

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

HS Code 731814

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

HS Code 731815

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel : Threaded articles : Other screws and bolts, whether or not with their nuts or washers

HS Code 731816

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

HS Code 731819

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

HS Code 731822

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

HS Code 731823

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

Frequently Asked Questions

What is HS code 731821 in Sao Tome and Principe?

HS code 731821 covers Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel : Nonthreaded articles : Spring washers and other lock washers in Sao Tome and Principe. It sits in Chapter 73 (Articles of iron or steel), Heading 7318 of the Harmonized System, and is classified under HS-ST.

Is HS code 731821 the same across all countries?

What system does Sao Tome and Principe use to classify HS code 731821?

Where can I officially look up HS code 731821 in Sao Tome and Principe?