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  • BS EN ISO 2320:2015

    Current The latest, up-to-date edition.

    Fasteners. Prevailing torque steel nuts. Functional properties

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-01-2016

    Publisher:  British Standards Institution

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

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols
    5 Thread
    6 Lubrication
    7 Mechanical properties of prevailing torque nuts
    8 Functional requirements for prevailing torque properties
    9 Test method
    Annex A (normative) - Temperature influence on prevailing
            torques of nuts with nonmetallic insert
    Annex B (informative) - Principles for the evaluation of the
            total coefficient of friction, [mu]tot
    Annex C (informative) - Test clamp force and prevailing
            torques for prevailing torque nuts M3 and M4 in
            property classes 8 and 10
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes the functional properties for prevailing torque steel nuts when tested at an ambient temperature range of +10 degrees C to +35 degrees C.

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

    Committee FME/9
    Development Note Supersedes 94/709147 DC. Partially supersedes BS 4929-1(1973). (06/2005) Supersedes 14/30298880 DC. (01/2016)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    DEFSTAN 02-862(PT1)/2(2007) : 2007 FASTENERS - PART 1: GENERAL
    DEFSTAN 02-862(PT1)/3(2011) : 2011 NAVAL FASTENERS - PART 1: MATERIAL SELECTION AND USE
    DEFSTAN 02-305/2(2003) : 2003 REQUIREMENTS FOR GEARING - MAIN PROPULSION
    DEFSTAN 02-305/3(2010) : 2010 REQUIREMENTS FOR GEARING - MAIN PROPULSION
    DEFSTAN 07-281/2(2017) : 2017 SPECIFICATION FOR THE TYPE X RESILIENT MOUNT AND THE LEAF SPRING ASSEMBLY OF THE TYPE Y RESILIENT MOUNT

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

    ISO 16047:2005 Fasteners — Torque/clamp force testing
    ISO 898-2:2012 Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with specified property classes — Coarse thread and fine pitch thread
    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 262:1998 ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
    ISO 68-1:1998 ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads
    ISO 273:1979 Fasteners — Clearance holes for bolts and screws
    ISO 261:1998 ISO general purpose metric screw threads General plan
    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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