• EN 27721 : 1991

    Current The latest, up-to-date edition.

    Countersunk head screws - Head configuration and gauging (ISO 7721:1983)

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    Language(s): 

    Published date:  16-10-1991

    Publisher:  Comite Europeen de Normalisation

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

    Foreword
    1 Scope and field of application
    2 Head configuration
    3 Gauging method
    Annex Calculation basis for the maximum head diameter
          of countersunk heads for screws

    Abstract - (Show below) - (Hide below)

    Specifies the characteristics of products with thread sizes from M 1,6 up to and including M 20; it recommends a gauging method for the dimensions laid down in the respective product standards; the annex contains the calculation basis

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

    Committee CEN/TC 185
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Current

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

    BS EN ISO 15482:1999 Cross recessed countersunk head drilling screws with tapping screw thread
    03/308658 DC : DRAFT MAY 2003 EN ISO 15065 - COUNTERSINKS FOR COUNTERSUNK HEAD SCREWS WITH HEAD CONFIGURATION IN ACCORDANCE WITH ISO 7721
    ISO 15482:1999 Cross recessed countersunk head drilling screws with tapping screw thread
    BS EN ISO 15483:1999 Cross recessed raised countersunk head drilling screws with tapping screw thread
    EN ISO 15482 : 1999 CROSS RECESSED COUNTERSUNK HEAD DRILLING SCREWS WITH TAPPING SCREW THREAD
    EN ISO 15483 : 1999 CROSS RECESSED RAISED COUNTERSUNK HEAD DRILLING SCREWS WITH TAPPING SCREW THREAD
    EN ISO 7721-2 : 1994 COUNTERSUNK FLAT HEAD SCREWS - PART 2: PENETRATION DEPTH OF CROSS RECESSES
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