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EN 22857:1989

Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches - Manufacturing tolerances on the threaded portion (ISO 2857:1973 + A1:1984 +A2:1986) EN 22857:1989

Publication date:   Aug 10, 2006

General information

90.93 Standard confirmed   Oct 13, 1999

CEN

CEN/BT

European Norm

25.100.50   Taps and threading dies

Buying

Published

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Scope

Is valid for the short taps specified in ISO 529 as well as for any other kind of ground thread taps with the same diameters and pitches. The internal threads produced with those taps are conventionally designated by the simplified denomination of "nut" in agreement with the word used in ISO 965 for the general designation of all internal threads.

Life cycle

NOW

PUBLISHED
EN 22857:1989
90.93 Standard confirmed
Oct 13, 1999

Relations

Adopted from ISO 2857:1973 IDENTICAL

Adopted from ISO 2857:1973/Amd 1:1984 IDENTICAL

Adopted from ISO 2857:1973/Amd 2:1986 IDENTICAL