rounded thread

[/ˈraʊndɪd θred/]
nounpl: rounded threads
rosca arredondada
1. A screw thread with a rounded or curved profile at the crest and root, rather than sharp or flat edges
The rounded thread design reduces stress concentrations and improves fatigue resistance.
O design de rosca arredondada reduz concentrações de tensão e melhora a resistência à fadiga.
2. A thread form commonly used in applications requiring lower vibration and quieter operation
Rounded threads are preferred in precision instruments where noise reduction is critical.
Roscas arredondadas são preferidas em instrumentos de precisão onde a redução de ruído é crítica.
Rounded threads are particularly important in Brazilian and Portuguese manufacturing industries, especially in automotive and mechanical engineering sectors. The term is part of standard technical vocabulary in ISO and ABNT (Associação Brasileira de Normas Técnicas) documentation.
Synonyms / Sinônimos
curved threadrounded profile threadsmooth thread
Antonyms / Antônimos
sharp threadangular threadsquare threadsawtooth thread

Regional Variations

General Brazilian
rosca arredondada
Standard term used in Brazilian industrial and technical contexts
São Paulo
rosca arredondada
Common in manufacturing and engineering sectors
Portugal
rosca arredondada
Used in Portuguese industrial standards and technical documentation
North America
rounded thread
Standard terminology in English-speaking engineering communities

Related Words

thread pitchthread formscrew threadmetric threadAcme threadthread profile
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