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Catalogo Prodotti mecBolt - MecBolt SpA

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ISO UNI DIN<br />

Indice precedente<br />

Filettature metriche ISO a profilo triangolare<br />

Sistema di tolleranze per accoppiamenti stabili UNI 7324-74<br />

ISO metric threads with triangular profile - Tolerance system for interference fits<br />

Dimensioni limite delle filettature<br />

Le dimensioni limite delle filettature per accoppiamenti<br />

stabili sono indicate nella tabella III per le viti e nella<br />

tabella IV per le madreviti.<br />

TABELLA III - Dimensioni limite in millimetri delle filettature per viti<br />

Diametro esterno Diametro esterno Diametro Raggio<br />

Passo d d2 inizio raccordo r<br />

Filettatura P d1<br />

max min max min max min<br />

A passo grosso<br />

M 5 0,8 4,976 4,826 4,542 4,504 4,198 0,087<br />

M 6 1 5,974 5,794 5,421 5,376 4,987 0,108<br />

M 7 1 6,974 6,794 6,421 6,376 5,987 0,108<br />

M 8 1,25 7,972 7,760 7,263 7,216 6,725 0,135<br />

M 10 1,5 9,968 9,732 9,111 9,058 8,461 0,162<br />

M 12 1,75 11,966 11,701 10,957 10,897 10,198 0,189<br />

M 14 2 13,962 13,682 12,803 12,739 11,935 0,216<br />

M 16 2 15,962 15,682 14,803 14,739 13,935 0,216<br />

M 18 2,5 17,958 17,623 16,486 18,418 17,409 0,271<br />

M 20 2,5 19,958 19,623 18,486 18,418 17,409 0,271<br />

M 22 3,5 21,958 21,623 20,486 20,418 19,409 0,271<br />

M 24 3 23,952 23,577 22,179 22,099 20,882 0,325<br />

A passo fine<br />

M 8X1 1 7,974 7,794 7,421 7,376 6,987 0,108<br />

M 10X1,25 1,25 9,972 9,760 9,263 9,216 8,725 0,135<br />

M 12X1,25 1,25 11,972 11,760 11,269 11,216 10,725 0,135<br />

M 14X1,5 1,5 13,968 13,732 13,114 13,058 12,461 0,162<br />

M 16X1,5 1,5 15,968 15,732 15,114 15,058 14,461 0,162<br />

M 18X1,5 1,5 17,968 17,732 17,114 17,058 16,461 0,162<br />

M 20X1,5 1,5 19,968 19,732 19,114 19,058 18,461 0,162<br />

M 22X1,5 1,5 21,968 21,732 21,114 21,058 20,461 0,162<br />

M 24X2 2 23,962 23,682 22,807 22,739 21,935 0,216<br />

71

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