HS code · 6-digit subheading
HS Code 7318.13 – Iron or steel; threaded screw hooks and screw rings
HS code 7318.13 is the 6-digit subheading for iron or steel, threaded screw hooks and screw rings. It is used for screw hooks, cup hooks, shoulder hooks, screw eyes and eye bolts (with wood thread).
What HS 7318.13 covers
This HS code covers threaded fasteners made of iron or steel that uniquely terminate in a hook or a ring, rather than a conventional screw head. These items are widely utilized for hanging, securing, or attaching objects in a multitude of settings, ranging from domestic organization and decoration to light industrial applications. They are essential for creating suspension points, securing ropes or wires, and providing convenient attachment points in various structures. International trade in these goods is driven by hardware distributors, retail chains, furniture manufacturers, and craft suppliers. Importers seek a variety of sizes and finishes for consumer and industrial markets. Exporters are typically metal stamping and wire forming companies, as well as general hardware manufacturers. Key considerations in trade include the item's load-bearing capacity, thread type (suitable for wood or machine applications), material finish (e.g., zinc plated, brass plated), and overall dimensions to meet specific application needs.
- Covers
- Screw hooks
- Cup hooks
- Shoulder hooks
- Screw eyes
- Eye bolts (with wood thread)
- Ceiling hooks
- Picture hanging hooks
- Examples
- Hillman Group screw hooks
- Stanley screw eyes
- Everbilt cup hooks
- National Hardware screw hooks
Codes often confused with 7318.13
Common mistake. Can be confused with 732690 (other articles of iron or steel) if not clearly identified as screw hooks or rings, or 731815 (other threaded screws) if the hook/ring feature is overlooked.
Top exporters and importers of HS code 731813, 2025
In 2025, the largest exporter of HS code 731813 in UN Comtrade data was Germany, with 25% of world exports; the largest importer in UN Comtrade data was Germany, with 16% 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 Germany $44M 25% of world exports
- 2 China $41M 24% of world exports
- 3 Italy $11M 6.5% of world exports
World total: $175M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $35M 16% of world imports
- 2 United States $17M 7.6% of world imports
- 3 Poland $11M 5.0% of world imports
World total: $227M 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 7318.13
Brazil does not split HS 7318.13: its NCM code is 7318.13.00.
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 7318.13
What is HS code 731813?
HS code 731813 is a 6-digit subheading in the Harmonized System that covers: Iron or steel; threaded screw hooks and screw rings. This HS code covers threaded fasteners made of iron or steel that uniquely terminate in a hook or a ring, rather than a conventional screw head. These items are widely utilized for hanging, securing, or attaching objects in a multitude of settings, ranging from domestic organization and decoration to light industrial applications. They are essential for creating suspension points, securing ropes or wires, and providing convenient attachment points in various structures. International trade in these goods is driven by hardware distributors, retail chains, furniture manufacturers, and craft suppliers. Importers seek a variety of sizes and finishes for consumer and industrial markets. Exporters are typically metal stamping and wire forming companies, as well as general hardware manufacturers. Key considerations in trade include the item's load-bearing capacity, thread type (suitable for wood or machine applications), material finish (e.g., zinc plated, brass plated), and overall dimensions to meet specific application needs.
What products fall under HS code 731813?
Screw hooks, cup hooks, shoulder hooks, screw eyes, eye bolts (with wood thread), ceiling hooks, picture hanging hooks
What are common misclassifications for HS code 731813?
Can be confused with 732690 (other articles of iron or steel) if not clearly identified as screw hooks or rings, or 731815 (other threaded screws) if the hook/ring feature is overlooked.
Which countries are the top exporters of goods under HS code 731813?
In 2025, the top exporters of HS code 731813 in UN Comtrade data were Germany ($44M, 25% of world exports), China ($41M) and Italy ($11M). World exports came to about $175M, 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 731813?
In 2025, the top importers of HS code 731813 in UN Comtrade data were Germany ($35M, 16% of world imports), the United States ($17M) and Poland ($11M). World imports came to about $227M, 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 731813 structured?
HS code 731813 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 (13) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 731813?
In Brazil, HS code 731813 is NCM 7318.13.00. The last two digits are 00 because Brazil does not split this HS code further.