HS code · 6-digit subheading
HS Code 7318.12 – Iron or steel; threaded wood screws other than coach screws
HS code 7318.12 is the 6-digit subheading for iron or steel, threaded wood screws other than coach screws. It is used for phillips head wood screws, pozi drive wood screws, torx head wood screws, flat head wood screws and round head wood screws.
What HS 7318.12 covers
This HS code encompasses a vast range of threaded wood screws made of iron or steel, specifically excluding the heavier coach screws (731811). These fasteners are designed with a tapered point and a coarse thread, enabling them to self-tap into wood, creating a secure and durable joint without pre-drilling in many cases. They are fundamental components in furniture manufacturing, cabinetry, general woodworking, and light construction projects. International trade involves a broad network of participants; importers include furniture factories, joinery workshops, hardware stores, and DIY suppliers. Exporters are typically specialized fastener manufacturers and general hardware producers capable of high-volume production. Key factors in trade include the screw's head type (e.g., Phillips, Pozi, Torx, slotted), drive type, length, diameter, and surface finish (e.g., zinc plated, black phosphate) to suit various aesthetic and functional requirements.
- Covers
- Phillips head wood screws
- Pozi drive wood screws
- Torx head wood screws
- Flat head wood screws
- Round head wood screws
- Particle board screws
- Cabinet screws
- Examples
- Spax universal screws
- Reisser R2 screws
- Screwfix wood screws
- Hillman Group wood screws
Codes often confused with 7318.12
Common mistake. Often confused with 731811 (coach screws) due to their wood application, or 731814 (self-tapping screws) if not specifically designed for wood, or 731700 (nails) due to similar applications but different fastening mechanisms.
Top exporters and importers of HS code 731812, 2025
In 2025, the largest exporter of HS code 731812 in UN Comtrade data was Taiwan, with about 27% of world exports; the largest importer in UN Comtrade data was Germany, with 12% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Taiwan* ~$398M 27% of world exports · partner records ↗
- 2 Germany $244M 16% of world exports
- 3 China $162M 11% of world exports
World total: $1.5B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $194M 12% of world imports
- 2 Austria $108M 6.8% of world imports
- 3 United Kingdom $102M 6.4% of world imports
World total: $1.6B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 7318.12
Brazil does not split HS 7318.12: its NCM code is 7318.12.00.
All Brazil NCM codes in heading 73.18 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about HS 7318.12
What is HS code 731812?
HS code 731812 is a 6-digit subheading in the Harmonized System that covers: Iron or steel; threaded wood screws other than coach screws. This HS code encompasses a vast range of threaded wood screws made of iron or steel, specifically excluding the heavier coach screws (731811). These fasteners are designed with a tapered point and a coarse thread, enabling them to self-tap into wood, creating a secure and durable joint without pre-drilling in many cases. They are fundamental components in furniture manufacturing, cabinetry, general woodworking, and light construction projects. International trade involves a broad network of participants; importers include furniture factories, joinery workshops, hardware stores, and DIY suppliers. Exporters are typically specialized fastener manufacturers and general hardware producers capable of high-volume production. Key factors in trade include the screw's head type (e.g., Phillips, Pozi, Torx, slotted), drive type, length, diameter, and surface finish (e.g., zinc plated, black phosphate) to suit various aesthetic and functional requirements.
What products fall under HS code 731812?
Phillips head wood screws, Pozi drive wood screws, Torx head wood screws, flat head wood screws, round head wood screws, particle board screws, cabinet screws
What are common misclassifications for HS code 731812?
Often confused with 731811 (coach screws) due to their wood application, or 731814 (self-tapping screws) if not specifically designed for wood, or 731700 (nails) due to similar applications but different fastening mechanisms.
Which countries are the top exporters of goods under HS code 731812?
In 2025, the top exporters of HS code 731812 in UN Comtrade data were Taiwan (about $398M, 27% of world exports), Germany ($244M) and China ($162M). World exports came to about $1.5B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 731812?
In 2025, the top importers of HS code 731812 in UN Comtrade data were Germany ($194M, 12% of world imports), Austria ($108M) and the United Kingdom ($102M). World imports came to about $1.6B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 731812 structured?
HS code 731812 is a 6-digit subheading under the Harmonized System. The first 2 digits (73) identify the chapter, digits 3-4 (18) identify the heading, and digits 5-6 (12) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 731812?
In Brazil, HS code 731812 is NCM 7318.12.00. The last two digits are 00 because Brazil does not split this HS code further.