Brazil NCM · 4-digit heading
NCM 73.18 – Iron or steel screws, bolts, nuts, rivets, washers
About NCM heading 73.18
Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel
Heading 73.18 of Brazil's NCM has 12 eight-digit codes. Official Portuguese description: Parafusos, pinos ou pernos, roscados, porcas, tira-fundos, ganchos roscados, rebites, chavetas, contrapinos ou troços, arruelas (anilhas) (incluindo as de pressão) e artigos semelhantes, de ferro fundido, ferro ou aço.
The first four digits, 7318, identify this heading within chapter 73. Its six-digit subheadings follow the international HS system; the final two digits distinguish Mercosur's NCM classifications. Select a code below to read its English translation, official Portuguese text and full classification path.
For product coverage and classification context, read the HS heading 73.18 guide.
NCM codes in heading 73.18 12
- 7318.1 Threaded articles: Artigos roscados:
- 7318.11.00 Iron or steel coach screwsTira-fundos
- 7318.12.00 Other iron or steel wood screwsOutros parafusos para madeira
- 7318.13.00 Screw hooks and screw rings, iron or steelGanchos, escápulas e pitões
- 7318.14.00 Iron or steel self-tapping screwsParafusos autoperfurantes
- 7318.15.00 Other iron or steel screws and bolts, threadedOutros parafusos e pinos ou pernos, mesmo com as porcas e arruelas (anilhas)
- 7318.16.00 Iron or steel threaded nutsPorcas
- 7318.19.00 Other threaded iron or steel articlesOutros
- 7318.2 Non-threaded articles: Artigos não roscados:
- 7318.21.00 Iron or steel spring washers and lock washersArruelas (anilhas) de pressão e outras arruelas (anilhas) de segurança
- 7318.22.00 Other iron or steel washersOutras arruelas (anilhas)
- 7318.23.00 Iron or steel rivetsRebites
- 7318.24.00 Iron or steel cotters and cotter-pinsChavetas e contrapinos ou troços
- 7318.29.00 Other non-threaded iron or steel articlesOutros
Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.