TERMIUM Plus®

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American National thread [1 record]

Record 1 1988-12-22

English

Subject field(s)
  • Joining Elements (Mechanical Components)
CONT

Unified and American National screw thread standards for screws, bolts, nuts, and other threaded parts consist of six series of threads and a selection of special threads that cover nonstandard combinations of diameter and pitch.

OBS

Abbreviation "N": used in the six series: "NC thread" (National Coarse); "NF thread" (National Fine); "NEF" (National Extra-Fine); "8N", "12N" and "16N", which concern the 8-, 12-, and 16- thread series.

OBS

Compare "Unified National thread".

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
OBS

Le filet "Unified National" est le plus fréquemment utilisé en Amérique du Nord. Le terme "Unified" fut défini à la suite d'un consensus entre les comités de normalisation du Royaume-Uni, des Etats-Unis et du Canada qui, en 1948, mirent au point des normes communes aux filets. Antérieurement, le fond et le sommet des filets "American National" étaient plats (...)

Spanish

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