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    I.S. EN 20898-1:1991

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    MECHANICAL PROPERTIES OF FASTENERS - BOLTS, SCREWS AND STUDS

    Available format(s):  Hardcopy, PDF

    Superseded date:  28-01-2000

    Language(s):  English

    Published date:  01-01-1991

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    Cooperating organizations
    National foreword
    Foreword
    1. Scope and field of application
    2. References
    3. Designation system
    4. Materials
    5. Mechanical properties
    6. Mechanical properties to be determined
    7. Minimum ultimate tensile loads and proofing loads
    8. Test methods
    9. Marking
    Annex
    Properties at elevated temperature
    Tables
    1. System of coordinates
    2. Steels
    3. Mechanical properties of bolts, screws and studs
    4. Key to test programmes
    5. Test programmes A and B for acceptance purposes
    6. Minimum ultimate tensile loads - ISO metric coarse
         pitch thread
    7. Proofing loads - ISO metric coarse pitch thread
    8. Minimum ultimate tensile loads - ISO metric fine
         pitch thread
    9. Proofing loads - ISO metric fine pitch thread
    10. Hole diameters for wedge loading test
    11. Wedge dimensions
    12. Values of angle beta
    13. Values for H1 and E
    14. Marking symbols
    15. Identification marks for studs
    16. Properties at elevated temperature
    Figures
    1. Test piece for tensile test
    2. Application of proofing load to full-size bolts
    3. Wedge loading of full-size bolts
    4. Head soundness test
    5. Zones of decarburization
    6. Hardness measurements for decarburization test
    7. Examples of marking on hexagon bolts and screws
    8. Examples of marking on hexagon socket head cap screws
    9. Marking of stud
    10. Left-hand thread marking
    11. Alternative left-hand thread marking
    National annex NA (informative)
    National annex NB (informative)

    Abstract - (Show below) - (Hide below)

    Applies to carbon or alloy steel bolts, screws and studs of specified dimensions and threads, specifies such mechanical properties as tensile strength, Vickers, Brinell, or Rockwell hardness, impact strength, head soundness, proof stress, elongation after fracture etc.

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

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By
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