Mexico HS Code

HS Code 731816: Nuts of iron or steel in Mexico

Q: Is HS code 731816 the same across all countries?

Yes — up to the 6-digit level, HS code 731816 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. Mexico extends it under TIGIE.

Q: What system does Mexico use to classify HS code 731816?

Mexico classifies products under the Tarifa de la Ley de los Impuestos Generales de Importación y Exportación + NICO (TIGIE; locally TIGIE + NICO), which extends HS codes to 10 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 731816 in Mexico?

The official source is https://www.gob.mx/anam. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 731816 in Mexico

Under Mexico's Tarifa de la Ley de los Impuestos Generales de Importación y Exportación + NICO (TIGIE + NICO), HS Code 731816 is the WCO Harmonized System subheading for Nuts of iron or steel. This is the most detailed internationally standardized level; Mexico extends classifications to 10 digits under its national tariff system. 731816 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 Mexico import export trade data and shipment records for HS Code Steel Nuts on TradeInt global trade data platform

Classification Path of HS Code 731816 in Mexico

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 731816

Nuts of iron or steel

HS Code 7318160601

Identifiable for aircraft. Reconocibles para naves aéreas.

HS Code 7318160602

Of stainless steel. De acero inoxidable.

HS Code 7318160603

Of an internal diameter of 15.9 mm (5/8 inch) or less, other than those covered by commercial identification numbers 7318.16.06.01 and 7318.16.06.02. De diámetro interior inferior o igual a 15.9 mm (5/8 pulgada), excepto lo comprendido en los números de identificación comercial 7318.16.06.01 y 7318.16.06.02.

HS Code 7318160604

Of an internal diameter exceeding 15.9 mm (5/8 inch) but not exceeding 38.1 mm (1 1/2 inches), other than those covered by commercial identification numbers 7318.16.06.01 and 7318.16.06.02. De diámetro interior superior a 15.9 mm (5/8 pulgada) pero inferior o igual a 38.1 mm (1½ pulgadas), excepto lo comprendido en los números de identificación comercial 7318.16.06.01 y 7318.16.06.02.

HS Code 7318160605

Of a diameter exceeding 38.1 mm (1 1/2 inches), other than those covered by commercial identification numbers 7318.16.06.01 and 7318.16.06.02. De diámetro superior a 38.1 mm (1½ pulgadas), excepto lo comprendido en los números de identificación comercial 7318.16.06.01 y 7318.16.06.02.

Mexico Tariff Classification: Tarifa de la Ley de los Impuestos Generales de Importación y Exportación + NICO (TIGIE)

In Mexico, HS 731816 is classified under the Tarifa de la Ley de los Impuestos Generales de Importación y Exportación + NICO (TIGIE + NICO) — a 10-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Tarifa de la Ley de los Impuestos Generales de Importación y Exportación + NICO (TIGIE)

Local name TIGIE + NICO

Digits 10

Official source https://www.gob.mx/anam

You know what 731816 means. Now see 2026 latest real trade activity for Steel Nuts in Mexico.

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

Search 2026 Latest Mexico Import Data Search 2026 Latest Mexico Export Data

Top Trading Product of HS Code 7318

Top Mexico import Product Under HS Code 7318

1 731815: Bolts o screws nes,with o without their nuts o washers,iron o steel $1.8B 2 731816: Nuts of iron or steel $562.6M 3 731829: Non-threaded articles of iron or steel, nes $198.0M

Figures shown for 2025.

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

Top Mexico export Product Under HS Code 7318

1 731815: Bolts o screws nes,with o without their nuts o washers,iron o steel $200.1M 2 731816: Nuts of iron or steel $55.6M 3 731822: Washers of iron or steel (excl. spring washers and other lock washers) $21.7M

Figures shown for 2025.

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

Related HS Code to Mexico Steel Nuts (731816)

HS Code 7318160601

Identifiable for aircraft.

HS Code 7318160602

Of stainless steel.

HS Code 7318160603

Of an internal diameter of 15.9 mm (5/8 inch) or less, other than those covered by commercial identification numbers 7318.16.06.01 and 7318.16.06.02.

HS Code 7318160604

Of an internal diameter exceeding 15.9 mm (5/8 inch) but not exceeding 38.1 mm (1 1/2 inches), other than those covered by commercial identification numbers 7318.16.06.01 and 7318.16.06.02.

HS Code 7318160605

Of a diameter exceeding 38.1 mm (1 1/2 inches), other than those covered by commercial identification numbers 7318.16.06.01 and 7318.16.06.02.

HS Code 731811

Coach screws of iron or steel

HS Code 731812

Screws, wood, iron or steel, nes

HS Code 731813

Screw hooks and screw rings of iron or steel

HS Code 731814

Screws, self-tapping, iron or steel

HS Code 731815

Bolts o screws nes,with o without their nuts o washers,iron o steel

Frequently Asked Questions

What is HS code 731816 in Mexico?

HS code 731816 covers Nuts of iron or steel in Mexico. It sits in Chapter 73 (Articles of iron or steel), Heading 7318 of the Harmonized System, and is classified under TIGIE.

Is HS code 731816 the same across all countries?

What system does Mexico use to classify HS code 731816?

Where can I officially look up HS code 731816 in Mexico?