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    ASME B1.21M : 1997

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    METRIC SCREW THREADS - MJ PROFILE

    Available format(s):  Hardcopy, PDF

    Superseded date:  23-08-2021

    Language(s):  English

    Published date:  01-01-2013

    Publisher:  American Society of Mechanical Engineers

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Standards Committee Roster
    1 General
    2 Profile of Thread
    3 Series of Threads
    4 Thread Characteristics
    5 Dimensional Accommodation of Coatings and Platings
    6 Designation of Threads
    7 Acceptability
    Appendices
    A - Coating of Threads
    B - Symbols for MJ Thread Dimensions and Tolerances

    Abstract - (Show below) - (Hide below)

    Describes the basic triangular profile for the MJ thread form; provides a system of designations; lists the standard series of diameter/pitch combinations for diameters from 1.6 to 200 mm; and specifies limiting dimensions and tolerances.

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

    Document Type Standard
    Product Note Reconfirmed 1997
    Publisher American Society of Mechanical Engineers
    Status Superseded
    Superseded By

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

    ISO 5855-2:1999 Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts
    ISO 5855-1:1999 Aerospace MJ threads Part 1: General requirements
    ASME B1.15 : 1995 UNIFIED INCH SCREW THREADS (UNJ THREAD FORM)
    ISO 5855-3:1999 Aerospace MJ threads Part 3: Limit dimensions for fittings for fluid systems
    ISO 261:1998 ISO general purpose metric screw threads General plan
    ISO 965-1:2013 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
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