HS code · 6-digit subheading
HS Code 7318.19 – Iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1
HS code 7318.19 is the 6-digit subheading for iron or steel, threaded screws, bolts and nuts n.e.c. in item no. 7318.1. It is used for set screws, grub screws, threaded rods, threaded studs and specialized eye bolts.
What HS 7318.19 covers
This "not elsewhere specified or included" (NESOI) code acts as a catch-all for various threaded fasteners of iron or steel that don't fit into the more specific categories like standard screws, bolts (731815), or nuts (731816). It encompasses specialized or less common threaded articles, playing a vital role in niche manufacturing, custom fabrication, and specific industrial applications where standard fasteners are insufficient. These can include items with unique thread designs, specialized heads, or specific material properties for demanding environments. Importers typically include specialized machinery manufacturers, custom fabricators, and distributors catering to unique industrial needs, often requiring bespoke fastening solutions. Exporters are often smaller, specialized fastener producers or larger manufacturers with diverse product lines capable of custom orders. Key aspects for trade involve understanding the specific application, material properties (e.g., high-strength alloys, corrosion resistance), unique thread designs, and compliance with industry-specific standards, making quality control and precise specifications paramount for these often custom-engineered components.
- Covers
- Set screws
- Grub screws
- Threaded rods
- Threaded studs
- Specialized eye bolts
- Specialized U-bolts
- Custom threaded fasteners
- Tamper-proof screws
- Examples
- AccuGroup set screws
- Fastenal threaded rods
- Würth security screws
- Böllhoff special studs
Codes often confused with 7318.19
Common mistake. This code is a residual category for threaded fasteners, often confused with 731815 (standard screws/bolts) or 731816 (nuts) if the item is not clearly defined or is a specialized variant.
Top exporters and importers of HS code 731819, 2025
In 2025, the largest exporter of HS code 731819 in UN Comtrade data was China, with 26% of world exports; the largest importer in UN Comtrade data was Germany, with 9.1% 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 China $1.0B 26% of world exports
- 2 Germany $620M 16% of world exports
- 3 United States $307M 7.9% of world exports
World total: $3.9B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $334M 9.1% of world imports
- 2 France $195M 5.3% of world imports
- 3 Italy $170M 4.6% of world imports
World total: $3.7B 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 that did not report are estimated from what other countries recorded trading with them. 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. 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 7318.19
Brazil does not split HS 7318.19: its NCM code is 7318.19.00.
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 7318.19
What is HS code 731819?
HS code 731819 is a 6-digit subheading in the Harmonized System that covers: Iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.1. This "not elsewhere specified or included" (NESOI) code acts as a catch-all for various threaded fasteners of iron or steel that don't fit into the more specific categories like standard screws, bolts (731815), or nuts (731816). It encompasses specialized or less common threaded articles, playing a vital role in niche manufacturing, custom fabrication, and specific industrial applications where standard fasteners are insufficient. These can include items with unique thread designs, specialized heads, or specific material properties for demanding environments. Importers typically include specialized machinery manufacturers, custom fabricators, and distributors catering to unique industrial needs, often requiring bespoke fastening solutions. Exporters are often smaller, specialized fastener producers or larger manufacturers with diverse product lines capable of custom orders. Key aspects for trade involve understanding the specific application, material properties (e.g., high-strength alloys, corrosion resistance), unique thread designs, and compliance with industry-specific standards, making quality control and precise specifications paramount for these often custom-engineered components.
What products fall under HS code 731819?
Set screws, grub screws, threaded rods, threaded studs, specialized eye bolts, specialized U-bolts, custom threaded fasteners, tamper-proof screws
What are common misclassifications for HS code 731819?
This code is a residual category for threaded fasteners, often confused with 731815 (standard screws/bolts) or 731816 (nuts) if the item is not clearly defined or is a specialized variant.
Which countries are the top exporters of goods under HS code 731819?
In 2025, the top exporters of HS code 731819 in UN Comtrade data were China ($1.0B, 26% of world exports), Germany ($620M) and the United States ($307M). World exports came to about $3.9B, 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 731819?
In 2025, the top importers of HS code 731819 in UN Comtrade data were Germany ($334M, 9.1% of world imports), France ($195M) and Italy ($170M). World imports came to about $3.7B, 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 731819 structured?
HS code 731819 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 (19) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 731819?
In Brazil, HS code 731819 is NCM 7318.19.00. The last two digits are 00 because Brazil does not split this HS code further.