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  • BS EN 14399-3:2015

    Current The latest, up-to-date edition.

    High-strength structural bolting assemblies for preloading System HR. Hexagon bolt and nut assemblies

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  28-02-2015

    Publisher:  British Standards Institution

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Bolts
    4 Nuts
    5 Designation of the bolt/nut assemblies
    6 Associated washers
    7 Functional characteristics of the bolt/nut/washer(s) assembly
    Annex A (normative) - Clamp lengths and grip lengths
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines together with EN 14399-1 and EN 14399-2, the requirements for assemblies of high-strength structural bolts and nuts of system HR suitable for preloaded joints with large widths across flats, thread sizes M12 to M36 and property classes 8.8/8 or 8.8/10 and 10.9/10.

    Scope - (Show below) - (Hide below)

    This European Standard specifies, together with EN14399‑1 and EN14399‑2 , the requirements for assemblies of high-strength structural bolts and nuts of system HR suitable for preloaded joints with large widths across flats, thread sizes M12 to M36 and property classes 8.8/8 or 8.8/10 and 10.9/10. Bolting assemblies in accordance with this document have been designed to allow preloading of at least 0,7 f ub× A s 1) according to EN1993‑1‑8 (Eurocode 3) and to obtain ductility predominantly by plastic elongation of the bolt. For this purpose the components have the following characteristics: normal nut height (style 1), see ENISO4032 ; thread length of the bolt according to ISO888 . Bolting assemblies in accordance with this document include washers according to EN14399‑6 or to EN14399‑5 (under the nut only). NOTE Attention is drawn to the importance of ensuring that bolting assemblies are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, reference to EN1090‑2 is made. General requirements and requirements for suitability for preloading are specified in EN14399‑2 . Clamp lengths and grip lengths for the bolting assemblies are specified in the normative AnnexA.

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

    Committee FME/9/-/2
    Development Note Supersedes 02/704462 DC. (11/2005) Together with BS EN 14399-1, BS EN 14399-2, BS EN 14399-4, BS EN 14399-5, BS EN 14399-6, BS EN 14399-7, BS EN 14399-8 and BS EN 14399-10 it supersedes BS 4395-1(1969) and BS 4395-2(1969). (07/2009) Supersedes 13/30277431 DC. (02/2015)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    BS PD6705-2(2010) : 2010 STRUCTURAL USE OF STEEL AND ALUMINIUM - PART 2: RECOMMENDATIONS FOR THE EXECUTION OF STEEL BRIDGES TO BS EN 1090-2
    PD 6705-3:2009 Structural use of steel and aluminium Recommendations for the execution of aluminium structures to BS EN 1090-3

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

    ISO 272:1982 Fasteners — Hexagon products — Widths across flats
    EN 14399-8:2007 High-strength structural bolting assemblies for preloading - Part 8: System HV - Hexagon fit bolt and nut assemblies
    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 10684:2004 Fasteners — Hot dip galvanized coatings
    ISO 965-5:1998 ISO general purpose metric screw threads — Tolerances — Part 5: Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing
    ISO 4759-1:2000 Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C
    ISO 6157-1:1988 Fasteners — Surface discontinuities — Part 1: Bolts, screws and studs for general requirements
    EN 26157-1 : 1991 FASTENERS - SURFACE DISCONTINUITIES - PART 1: BOLTS, SCREWS AND STUDS FOR GENERAL REQUIREMENTS
    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 4032:2012 Hexagon regular nuts (style 1) — Product grades A and B
    ISO 3508:1976 Thread run-outs for fasteners with thread in accordance with ISO 261 and ISO 262
    EN ISO 4759-1 : 2000 TOLERANCES FOR FASTENERS - PART 1: BOLTS, SCREWS, STUDS AND NUTS - PRODUCT GRADES A, B AND C
    EN ISO 3269:2000 FASTENERS - ACCEPTANCE INSPECTION
    EN 14399-6:2015 High-strength structural bolting assemblies for preloading - Part 6: Plain chamfered washers
    EN 14399-1:2015 High-strength structural bolting assemblies for preloading - Part 1: General requirements
    ISO 888:2012 Fasteners — Bolts, screws and studs — Nominal lengths and thread lengths
    EN 14399-4:2015 High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt and nut assemblies
    ISO 261:1998 ISO general purpose metric screw threads General plan
    EN 1090-2:2008+A1:2011 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
    ISO 6157-2:1995 Fasteners Surface discontinuities Part 2: Nuts
    EN 14399-7:2007 High-strength structural bolting assemblies for preloading - Part 7: System HR - Countersunk head bolt and nut assemblies
    EN ISO 6157-2:2004 Fasteners - Surface discontinuities - Part 2: Nuts (ISO 6157-2:1995)
    EN ISO 4032:2012 Hexagon regular nuts (style 1) - Product grades A and B (ISO 4032:2012)
    EN ISO 10684:2004/AC:2009 Fasteners - Hot dip galvanized coatings (ISO 10684:2004/Cor 1:2008)
    EN 14399-5:2015 High-strength structural bolting assemblies for preloading - Part 5: Plain washers
    EN 1993-1-8:2005/AC:2009 EUROCODE 3: DESIGN OF STEEL STRUCTURES - PART 1-8: DESIGN OF JOINTS
    ISO 3269:2000 Fasteners Acceptance inspection
    EN 14399-2:2015 High-strength structural bolting assemblies for preloading - Part 2: Suitability for preloading
    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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