Skip to content
Please enter a keyword to search

  • BS 7644-1:1993

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    View superseded by

    Direct tension indicators. Specification for compressible washers

    Available format(s):  Hardcopy, PDF

    Superseded date:  31-07-2009

    Language(s):  English

    Published date:  15-04-1993

    Publisher:  British Standards Institution

    Add To Cart

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

    Committees responsible
    Foreword
    Specification
    1 Scope
    2 References
    3 Dimensions
    4 Performance
    5 Characteristics
    6 Manufacturer's certificate
    7 Marking and identification
    8 Designation
    Annexes
    A (informative) Use of compressible washer-type
         direct tension indicators
    B (informative) Corrosion protection of indicator
         measuring gap
    Tables
    1 Dimensions of compressible washer-type direct
         tension indicators
    2 Indicator loads at appropriate gap (specified in
         table 3)
    3 Average indicator gaps
    4 Characteristics of indicators
    Figures
    1 Dimensions of compressible washer-type direct
         tension indicators
    2 Bolt tightening by rotation of the nut (normal
         method of assembly)
    3 Bolt tightening by rotation of the bolt
         (alternative method of assembly)
    A.1 Checking the indicator gap
    List of references

    Abstract - (Show below) - (Hide below)

    Specifies the requirements of compressible washers for use in bolted structural joints to give an indication of the bolt preload.

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

    Committee FME/9
    Development Note Supersedes 90/80390 DC (10/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    BS 5950-2:2001 STRUCTURAL USE OF STEELWORK IN BUILDING - PART 2: SPECIFICATION FOR MATERIALS, FABRICATION AND ERECTION - ROLLED AND WELDED SECTIONS
    BS 5950-1:2000 STRUCTURAL USE OF STEELWORK IN BUILDING - PART 1: CODE OF PRACTICE FOR DESIGN - ROLLED AND WELDED SECTIONS
    BS 7644-2:1993 Direct tension indicators Specification for nut face and bolt face washers
    BS 5400-6:1999 STEEL, CONCRETE AND COMPOSITE BRIDGES - PART 6: SPECIFICATION FOR MATERIALS AND WORKMANSHIP, STEEL

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

    BS 4921:1988 Specification for sherardized coatings on iron or steel
    BS 7644-2:1993 Direct tension indicators Specification for nut face and bolt face washers
    BS 4604-1:1970 SPECIFICATION FOR THE USE OF HIGH STRENGTH FRICTION GRIP BOLTS IN STRUCTURAL STEELWORK METRIC SERIES - PART 1: GENERAL GRADE
    BS 4395-1:1969 Specification for high strength friction grip bolts and associated nuts and washers for structural engineering General grade
    BS 1706:1990 Method for specifying electroplated coatings of zinc and cadmium on iron and steel
    BS 6587:1985 Method of acceptance inspection for fasteners
    BS 4604-2:1970 SPECIFICATION FOR THE USE OF HIGH STRENGTH FRICTION GRIP BOLTS IN STRUCTURAL STEELWORK - METRIC SERIES - HIGHER GRADE (PARALLEL SHANK)
    BS 4395-2:1969 Specification for high strength friction grip bolts and associated nuts and washers for structural engineering Higher grade bolts and nuts and general grade washers
    BS 6322-3:1982 Tolerances for fasteners. Specification for tolerances of washers for metric bolts, screws and nuts with thread diameters from 1 mm up to and including 150 mm. Product grades A and C
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective