TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
UNIFIED NATIONAL EXTRAFINE SCREW THREAD [1 record]
Record 1 - internal organization data 2005-10-26
Record 1, English
Record 1, Subject field(s)
- Joining Elements (Mechanical Components)
Record 1, Main entry term, English
- Unified National Extra-Fine screw thread
1, record 1, English, Unified%20National%20Extra%2DFine%20screw%20thread
correct
Record 1, Abbreviations, English
- UNEF 1, record 1, English, UNEF
correct
Record 1, Synonyms, English
- Unified National Extrafine screw thread 2, record 1, English, Unified%20National%20Extrafine%20screw%20thread
correct
- UNEF thread 2, record 1, English, UNEF%20thread
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 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. In general, the unified screw threads are limited to three series: coarse (UNC), fine (UNF), and extrafine (UNEF). A 1/4-inch.-diameter thread in the UNC series has 20 threads/in., while in the UNF series it has 28. ... The extrafine thread series (UNEF and NEF) is used principally in aeronautical structures where an extremely shallow thread is needed for thin-walled material and where a maximum practicable number of threads is required for a given length. 2, record 1, English, - Unified%20National%20Extra%2DFine%20screw%20thread
Record number: 1, Textual support number: 1 OBS
See also "8N", "8UN", "12N", "12UN", and "16N", "16UN", which concern the 8-, 12- and 16-thread series. 3, record 1, English, - Unified%20National%20Extra%2DFine%20screw%20thread
Record 1, French
Record 1, Domaine(s)
- Éléments d'assemblage (Composants mécaniques)
Record 1, Main entry term, French
- filetage UNEF
1, record 1, French, filetage%20UNEF
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- filetage unifié à pas extra-fin UNEF 2, record 1, French, filetage%20unifi%C3%A9%20%C3%A0%20pas%20extra%2Dfin%20UNEF
proposal, masculine noun
- filetage UNEF à pas extra-fin 2, record 1, French, filetage%20UNEF%20%C3%A0%20pas%20extra%2Dfin
proposal, masculine noun
- filetage unifié à pas entrafin UNEF 3, record 1, French, filetage%20unifi%C3%A9%20%C3%A0%20pas%20entrafin%20UNEF
masculine noun
- filetage UNEF à pas extrafin 3, record 1, French, filetage%20UNEF%20%C3%A0%20pas%20extrafin
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Norme BS 1580 : 1953 «Unified Screw Threads». Il s'agit des filetages cylindriques de mécanique générale, au profil ISO, mais avec les cotes en pouces. Depuis 1949, le Royaume-Uni, le Canada et les États-Unis se sont mis d'accord sur ces filetages et leur désignation : «UNC» pour «Unified coarse thread» (gros pas); «UNF» pour «Unified fine thread» (pas fin) : «UNEF» pour «Unified extra-fine» (pas extra fin); «UN» pour «Unified constant pitch» (pas constant). Ces filetages figurent [...] d'une manière plus complète dans la norme américaine ASA B1.1-1960 qui concerne les filetages unifiés. 1, record 1, French, - filetage%20UNEF
Record number: 1, Textual support number: 1 OBS
extrafin : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004). 3, record 1, French, - filetage%20UNEF
Record 1, Spanish
Record 1, Textual support, Spanish
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