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BS EN 14399-9:2009

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

High strength structural bolting for preloading System HR or HV. Direct tension indicators for bolt and nut assemblies
Available format(s)

Hardcopy , PDF

Superseded date

05-22-2018

Language(s)

English

Published date

07-31-2009

Foreword
Introduction
1 Scope
2 Normative references
3 Direct tension indicators
  3.1 Dimensions
  3.2 Specifications and reference standards
  3.3 Performance test of direct tension indicators
  3.4 Test method for measuring compression loads
      (all finishes) on direct tension indicators
      3.4.1 General
      3.4.2 Testing apparatus
      3.4.3 Compression loading system
      3.4.4 Support blocks
      3.4.5 Bearing blocks
      3.4.6 Calibration
      3.4.7 Test Procedure
  3.5 Marking of the direct tension indicator
  3.6 Designation of the direct tension indicator
4 Nut face washers and bolt face washers
  4.1 Dimensions
  4.2 Specifications and reference standards for nut
      face washers and bolt face washers
  4.3 Marking
      4.3.1 Nut face washers
      4.3.2 Bolt face washers
  4.4 Designation
      4.4.1 Nut face washers
      4.4.2 Bolt face washers
5 Functional characteristics
  5.1 Assemblies
  5.2 Functional characteristics of direct tension
      indicators in the assembly
  5.3 Functional characteristics of the
      bolt/nut/washer(s)/direct tension
      indicator assembly
      5.3.1 General
      5.3.2 Test procedure
Annex A (informative) - Special testing conditions
        and procedures
Bibliography

Describes the requirements for assemblies of high-strength structural bolts and nuts, with large width across flats, of system HR or HV, including the requirements for the general dimensions, tolerances, materials and performance for two grades, H8 and H10, of compressible washer-type direct tension indicators, nut face washers and bolt face washers suitable for preloaded joints.

This document specifies, together with EN 14399-1, the requirements for assemblies of high-strength structural bolts and nuts, with large width across flats, of system HR or HV, including the requirements for the general dimensions, tolerances, materials and performance for two grades, H8 and H10, of compressible washer-type direct tension indicators, nut face washers and bolt face washers suitable for preloaded joints. The assemblies include the nominal thread sizes M12 up to and including M36 and property classes 8.8/8, 8.8/10 and 10.9/10. Bolt and nut assemblies to this document have been designed to allow preloading of at least 0,7 fub × As according to EN 1993-1-8 (Eurocode 3) and to obtain ductility predominantly by plastic elongation of the bolt for system HR according to EN 14399-3 or by plastic deformation of the engaged threads for system HV according to EN 14399-4; also countersunk and fit bolts according to EN 14399-7 and -8 respectively. Bolt and nut assemblies conforming to this document may include washer(s) according to EN 14399-6 or to EN 14399-5 (under the nut only). The purpose of the direct tension indicators is to show that a defined preload is achieved in the bolt. The direct tension indicator can be used alone or with bolt face washers or nut face washers conforming to this standard. In either case the direct tension indicators shall be used as part of an assembly in accordance with EN 14399-1. To comply with EN 14399-1, the assemblies shall be supplied by one manufacturer include bolts, nuts, washers and direct tension indicators. NOTE 1 Attention is drawn to the importance of ensuring that the assemblies are correctly used if satisfactory results are to be obtained. The test method for suitability for preloading is specified in EN 14399-2 and supplemented by Clause 5. Guidance on the use of compressible washer-type direct tension indicators is given in EN 1090-2. (...)

Committee
FME/9
DevelopmentNote
Supersedes BS 7644-1(1993) and BS 7644-2(1993). Supersedes 07/30107797 DC. (07/2009)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
EN 14399-9:2018 Identical

ISO 6507-1:2005 Metallic materials Vickers hardness test Part 1: Test method
EN 14399-8:2007 High-strength structural bolting assemblies for preloading - Part 8: System HV - Hexagon fit bolt and nut assemblies
EN ISO 6508-1:2016 Metallic materials - Rockwell hardness test - Part 1: Test method (ISO 6508-1:2016)
EN 14399-3:2015 High-strength structural bolting assemblies for preloading - Part 3: System HR - Hexagon bolt and nut assemblies
ISO 4759-3:2016 Tolerances for fasteners Part 3: Washers for bolts, screws and nuts Product grades A, C and F
ISO 6508-1:2016 Metallic materials — Rockwell hardness test — Part 1: Test method
EN ISO 4759-3:2016 Tolerances for fasteners - Part 3: Washers for bolts, screws and nuts - Product grades A, C and F (ISO 4759-3:2016)
EN 13811 : 2003 SHERARDIZING - ZINC DIFFUSION COATINGS ON FERROUS PRODUCTS - SPECIFICATION
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
EN 10204:2004 Metallic products - Types of inspection documents
EN 14399-4:2015 High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt and nut assemblies
EN 1090-2:2008+A1:2011 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
ISO 7500-1:2015 Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines Calibration and verification of the force-measuring system
EN 14399-7:2007 High-strength structural bolting assemblies for preloading - Part 7: System HR - Countersunk head bolt and nut assemblies
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 1993-1-1:2005/A1:2014 EUROCODE 3: DESIGN OF STEEL STRUCTURES - PART 1-1: GENERAL RULES AND RULES FOR BUILDINGS
EN 14399-2:2015 High-strength structural bolting assemblies for preloading - Part 2: Suitability for preloading

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