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  • ISO 2857:1973

    Current The latest, up-to-date edition.

    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

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s): 

    Published date:  01-12-1973

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Development Note Also numbered as BS 949-4(1990) and EN 22857. (10/2005)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    DIN 802-6:2003-07 TOLERANCES ON THE THREADED PORTION OF TAPS - PART 6: GROUND TAPS FOR TAPPED HOLES (EG) FOR WIRE THREAD INSERTS ACCORDING TO DIN 8140 FOR ISO METRIC COARSE AND FINE PITCH THREADS - MANUFACTURING TOLERANCES ON THE THREADED PORTION
    BS 949-2:1979 Screwing taps Taps for Unified threads (and for the obsolescent threads of Whitworth and BA forms)
    BS 949-3:1993 Screwing taps. Specification for pipe thread taps
    BS 949-1:1992 Screwing taps Specification of general dimensions
    DIN 802-6 E : 2003 MANUFACTURING TOLERANCES ON THE THREADED PORTION OF SCREWING TAPS - PART 6: GROUND TAPS FOR TAPPED HOLES (EG) FOR WIRE THREAD INSERTS AS IN DIN 8140 FOR ISO METRIC COARSE AND FINE PITCH THREADS
    BS ISO 529:2017 Short machine taps and hand taps
    BS 949-1:1976 Screwing taps Specification for taps for ISO metric threads
    SAE J 2123 : 1998 NUMBERING SYSTEM FOR TAPS
    ISO 529:2017 Short machine taps and hand taps

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 724:1993 ISO general-purpose metric screw threads — Basic dimensions
    ISO 965-2:1998 ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general purpose external and internal screw threads — Medium quality
    ISO 529:2017 Short machine taps and hand taps
    ISO 965-1:2013 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
    ISO 965-3:1998 ISO general purpose metric screw threads Tolerances Part 3: Deviations for constructional screw threads
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