HS code · 6-digit subheading
HS Code 8463.20 – Machine-tools; for working metal, sintered metal carbides or cermets, without removing material, thread rolling machines
HS code 8463.20 is the 6-digit subheading for machine-tools, for working metal, sintered metal carbides or cermets, without removing material, thread rolling machines. It is used for two-die thread rolling machines, three-die thread rolling machines, flat die thread rolling machines, planetary thread rolling machines and hydraulic thread rolling machines.
What HS 8463.20 covers
This category includes thread rolling machines, specialized machine tools that form threads on metal workpieces by cold deformation, rather than cutting. This process results in stronger, more precise threads with improved surface finish and material grain structure. Thread rolling machines are essential for high-volume fastener manufacturing, automotive components, and aerospace parts, where thread integrity and reliability are critical. Key exporters are countries with advanced manufacturing capabilities, such as Germany, Italy, and Taiwan, and importers are industries requiring high-volume, high-quality threaded components for assembly and construction.
- Covers
- Two-die thread rolling machines
- Three-die thread rolling machines
- Flat die thread rolling machines
- Planetary thread rolling machines
- Hydraulic thread rolling machines
- CNC thread rolling machines
- Examples
- Videx thread rolling machines
- Waterbury Farrel thread rollers
- National Machinery thread rollers
- Tesker thread rolling machines
Codes often confused with 8463.20
Common mistake. Often confused with thread cutting machines, which fall under heading 8459, due to similar end-products, but the non-material-removing cold forming process is the key distinction.
Top exporters and importers of HS code 846320, 2025
In 2025, the largest exporter of HS code 846320 in UN Comtrade data was China, with 37% of world exports; the largest importer in UN Comtrade data was the United States, with 14% of world imports. Taiwan did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 14% of its exports here ($2.9M, CEPII BACI), so it may rank higher.
Top exporters 2025 · share of world exports
- 1 China $34M 37% of world exports
- 2 Italy $17M 19% of world exports
- 3 Taiwan* ~$16M 17% of world exports · partner records ↗
Taiwan did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 14% of its exports here ($2.9M, CEPII BACI), so it may rank higher.
World total: $93M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $15M 14% of world imports
- 2 India $12M 12% of world imports
- 3 China $12M 11% of world imports
World total: $105M 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 codes for 8463.20 3
Brazil splits HS 8463.20 into 3 NCM codes, Mercosur's 8-digit tariff lines.
- 8463.20.10 CNC thread rolling machinesDe comando numérico
- 8463.20.9 OtherOutras Group
- 8463.20.91 Non-CNC flat-die thread rollers, 160/min or moreDe pente plano, com capacidade de produção igual ou superior a 160 unidades por minuto, de diâmetro de rosca compreendido entre 3 mm e 10 mm
- 8463.20.99 Other non-CNC thread rolling machinesOutras
All Brazil NCM codes in heading 84.63 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8463.20
What is HS code 846320?
HS code 846320 is a 6-digit subheading in the Harmonized System that covers: Machine-tools; for working metal, sintered metal carbides or cermets, without removing material, thread rolling machines. This category includes thread rolling machines, specialized machine tools that form threads on metal workpieces by cold deformation, rather than cutting. This process results in stronger, more precise threads with improved surface finish and material grain structure. Thread rolling machines are essential for high-volume fastener manufacturing, automotive components, and aerospace parts, where thread integrity and reliability are critical. Key exporters are countries with advanced manufacturing capabilities, such as Germany, Italy, and Taiwan, and importers are industries requiring high-volume, high-quality threaded components for assembly and construction.
What products fall under HS code 846320?
Two-die thread rolling machines, three-die thread rolling machines, flat die thread rolling machines, planetary thread rolling machines, hydraulic thread rolling machines, CNC thread rolling machines
What are common misclassifications for HS code 846320?
Often confused with thread cutting machines, which fall under heading 8459, due to similar end-products, but the non-material-removing cold forming process is the key distinction.
Which countries are the top exporters of goods under HS code 846320?
In 2025, the top exporters of HS code 846320 in UN Comtrade data were China ($34M, 37% of world exports), Italy ($17M) and Taiwan (about $16M). World exports came to about $93M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Taiwan did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 14% of its exports here ($2.9M, CEPII BACI), so it may rank higher.
Which countries are the top importers of goods under HS code 846320?
In 2025, the top importers of HS code 846320 in UN Comtrade data were the United States ($15M, 14% of world imports), India ($12M) and China ($12M). World imports came to about $105M, 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 846320 structured?
HS code 846320 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (63) identify the heading, and digits 5-6 (20) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 846320?
Brazil splits HS code 846320 into 3 NCM codes: 8463.20.10 (CNC thread rolling machines), 8463.20.91 (Non-CNC flat-die thread rollers, 160/min or more), 8463.20.99 (Other non-CNC thread rolling machines). The first 6 digits of each match the HS code.