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    ASME B18.13.1M : 2011

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    SCREW AND WASHER ASSEMBLIES - SEMS (METRIC SERIES)

    Available format(s):  Hardcopy, PDF

    Superseded date:  23-08-2021

    Language(s):  English

    Published date:  01-01-2016

    Publisher:  American Society of Mechanical Engineers

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

    Foreword
    Committee Roster
    Correspondence With the B18 Committee
    1 Introduction
    2 General Data
    3 Helical Spring Lock Washer SEMS
    4 Tooth Lock Washer SEMS
    5 Conical Washer SEMS
    6 Plain Washer SEMS
    Nonmandatory Appendices
    A - Reference Information for Users of This Standard
    B - Plain Washers on Tapping Screws
    C - The Relationship of This Revision to Previous
        Revisions of This Standard and to ISO Standards
    D - Manufacturing
    E - Statistical Expression of Hardness
    F - Recovery Test
    G - How SEMS Function

    Abstract - (Show below) - (Hide below)

    Describes the general, dimensional, material, and mechanical requirements for metric through-hardened (property classes 8.8, 9.8, and 10.9) machine screws and case-hardened tapping screws from 5 mm to 12 mm captivated washer assemblies (SEMS).

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

    Document Type Standard
    Product Note Reconfirmed 2011
    Publisher American Society of Mechanical Engineers
    Status Superseded
    Superseded By

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

    SAE J 773 : 2016 CONICAL SPRING WASHERS
    ASME B18.24 : 2015 PART IDENTIFYING NUMBER (PIN) CODE SYSTEM STANDARD FOR B18 FASTENER PRODUCTS
    ISO 2702:2011 Heat-treated steel tapping screws — Mechanical properties
    ISO 1478:1999 Tapping screws thread
    ASME B18.18 : 2017 QUALITY ASSURANCE FOR FASTENERS
    ISO 898-1:2013 Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread
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