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ISO 2857

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

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Organization: ISO
Publication Date: 1 December 1973
Status: active
Page Count: 20
ICS Code (Taps and threading dies): 25.100.50
scope:

SCOPE AND FIELD OF APPLICATION

This International Standard specifies the manufacturing tolerances on the threaded portion of taps for producing the IS0 metric threads of tolerance classes 4H to 8H and 4G to 6G as defined in ISO/R 965/1 to III (excluding, consequently, classes 7G and 8G considered as usually produced with ground thread taps).

It is valid for the short taps specified in ISO/R 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/R 965 for the general designation of all internal threads.

Annexes A and B give, for all threads with coarse and fine pitches, the manufacturing tolerances on the threaded portion of taps for the following classes of nuts

Document History

ISO 2857
October 15, 1990
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 TECHNICAL CORRIGENDUM 1
A description is not available for this item.
ISO 2857
September 15, 1986
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 Amendment 2
A description is not available for this item.
ISO 2857
July 15, 1984
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 Amendment 1
A description is not available for this item.
ISO 2857
December 1, 1973
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
SCOPE AND FIELD OF APPLICATION This International Standard specifies the manufacturing tolerances on the threaded portion of taps for producing the IS0 metric threads of tolerance classes 4H to 8H...

References

This document references:
ISO 529 - Short machine taps and hand taps
Published by ISO on March 1, 2017
This document specifies the general dimensions of short machine taps and hand taps. These dimensions, established as functions of the thread diameter and pitch, are the following: — length of thread...
This document references:
ISO 529 - Short machine taps and hand taps
Published by ISO on March 1, 2017
This document specifies the general dimensions of short machine taps and hand taps. These dimensions, established as functions of the thread diameter and pitch, are the following: — length of thread...
This document references:
ISO 965-2 - ISO General Purpose Metric Screw Threads - Tolerances - Part 2: Limits of Sizes for General Purpose External and Internal Screw Threads - Medium Quality
Published by ISO on December 15, 1998
This part of ISO 965 specifies limits of sizes for pitch and crest diameters for ISO general purpose metric screw threads (M) conforming to ISO 262 having basic profile according to ISO 68-1. The...
This document references:
ISO 965-4 - ISO General Purpose Metric Screw Threads - Tolerances - Part 4: Limits of Sizes for Hot-Dip Galvanized External Screw Threads to Mate with Internal Screw Threads Tapped with Tolerance Position H or G After Galvanizing
Published by ISO on December 15, 1998
This part of ISO 965 specifies deviations and limits of sizes for pitch and crest diameters for ISO general purpose metric external screw threads conforming to ISO 262 having a basic profile...
This document references:
ISO 965-5 - ISO General Purpose Metric Screw Threads - Tolerances - Part 5: Limit of Sizes for Internal Screw Threads to Mate with Hot-Dip Galvanized External Screw Threads with Maximum Size of Tolerance Position h Before Galvanizing
Published by ISO on December 15, 1998
This part of ISO 965 specifies deviations and limits of sizes for pitch and crest diameters for ISO general purpose metric internal screw threads conforming to ISO 262 having basic profile according...
This document references:
ISO 724 - ISO general-purpose metric screw threads — Basic dimensions TECHNICAL CORRIGENDUM 1
Published by ISO on July 15, 2009
This International Standard specifies the basic dimensions, in millimetres, of IS0 metric screw threads in accordance with IS0 261. The values refer to the basic profile in accordance with IS0 68.
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