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  • ISO 7721:1983

    Current The latest, up-to-date edition.

    Countersunk head screws — Head configuration and gauging

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English, French

    Published date:  01-09-1983

    Publisher:  International Organization for Standardization

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    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 ISO/TC 2/SC 11
    Development Note Also numbered as BS EN 27721 (10/2005)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Current

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

    BS EN ISO 14582:2013 Fasteners. Hexalobular socket countersunk head screws, high head
    DIN EN ISO 14582 E : 2014 FASTENERS - HEXALOBULAR SOCKET COUNTERSUNK HEAD SCREWS, HIGH HEAD (ISO 14582:2013)
    DIN ISO 1483:1990-08 SLOTTED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS (COMMON HEAD STYLE)
    DIN ISO 7051:1990-08 CROSS RECESSED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    I.S. EN ISO 14581:2013 FASTENERS - HEXALOBULAR SOCKET COUNTERSUNK FLAT HEAD SCREWS (ISO 14581:2013)
    UNE-EN ISO 7050:2011 Cross-recessed countersunk (flat) head tapping screws (ISO 7050:2011)
    BS EN ISO 15482:1999 Cross recessed countersunk head drilling screws with tapping screw thread
    BS EN ISO 1482:2011 Slotted countersunk (flat) head tapping screws
    I.S. EN ISO 1482:2011 SLOTTED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS
    I.S. EN ISO 2010:2011 SLOTTED RAISED COUNTERSUNK HEAD SCREWS - PRODUCT GRADE A (ISO 2010:2011)
    ONORM EN ISO 14581 : 2013 FASTENERS - HEXALOBULAR SOCKET COUNTERSUNK FLAT HEAD SCREWS (ISO 14581:2013)
    DIN EN ISO 14581:2014-02 Fasteners - Hexalobular socket countersunk flat head screws (ISO 14581:2013)
    09/30208230 DC : 0 BS ISO 1483 - SLOTTED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    DIN ISO 7050:1990-08 CROSS RECESSED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS (COMMON HEAD STYLE)
    PREN ISO 1482 : DRAFT 2009 SLOTTED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS
    DIN EN ISO 7051:2011-11 Cross-recessed raised countersunk (oval) head tapping screws (ISO 7051:2011)
    UNI EN ISO 14582 : 2014 FASTENERS - HEXALOBULAR SOCKET COUNTERSUNK HEAD SCREWS, HIGH HEAD
    DIN EN ISO 1483:2011-10 Slotted raised countersunk (oval) head tapping screws (ISO 1483:2011)
    ISO 8992:2005 Fasteners — General requirements for bolts, screws, studs and nuts
    DIN EN ISO 14586:2011-05 Hexalobular socket countersunk head tapping screws (ISO 14586:2011)
    DIN EN ISO 14587:2011-05 Hexalobular socket raised countersunk (oval) head tapping screws (ISO 14587:2011)
    UNE-EN ISO 14586:2011 Hexalobular socket countersunk head tapping screws (ISO 14586:2011)
    UNE-EN ISO 14584:2011 Hexalobular socket raised countersunk head screws (ISO 14584:2011)
    BS EN ISO 7051:2011 Cross-recessed raised countersunk (oval) head tapping screws
    UNE-EN ISO 7046-1:2012 Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 1: Steel of property class 4.8 (ISO 7046-1:2011)
    UNE-EN ISO 2010:2012 Slotted raised countersunk head screws - Product grade A (ISO 2010:2011)
    BS EN ISO 7047:2011 Raised countersunk head screws (common head style) with type H or type Z cross recess. Product grade A
    I.S. EN ISO 1483:2011 SLOTTED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    DIN EN ISO 7046-2:2011-12 Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws (ISO 7046-2:2011)
    DIN 74:2003-04 COUNTERSINKS FOR COUNTERSUNK HEAD SCREWS EXCEPT COUNTERSUNK HEAD SCREWS (EXCEPT SCREWS WITH DIN EN 27721 HEAD)
    I.S. EN ISO 14587:2011 HEXALOBULAR SOCKET RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    I.S. EN ISO 7047:2011 RAISED COUNTERSUNK HEAD SCREWS (COMMON HEAD STYLE) WITH TYPE H OR TYPE Z CROSS RECESS - PRODUCT GRADE A (ISO 7047:2011)
    I.S. EN ISO 7046-2:2011 COUNTERSUNK FLAT HEAD SCREWS (COMMON HEAD STYLE) WITH TYPE H OR TYPE Z CROSS RECESS - PRODUCT GRADE A - PART 2: STEEL SCREWS OF PROPERTY CLASS 8.8, STAINLESS STEEL SCREWS AND NON-FERROUS METAL SCREWS (ISO 7046-2:2011)
    I.S. EN ISO 7051:2011 CROSS-RECESSED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    DIN EN ISO 7046-1:2011-12 Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 1: Steel screws of property class 4.8 (ISO 7046-1:2011)
    I.S. EN ISO 14584:2011 HEXALOBULAR SOCKET RAISED COUNTERSUNK HEAD SCREWS
    I.S. EN ISO 7050:2011 CROSS-RECESSED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS
    I.S. EN ISO 2009:2011 SLOTTED COUNTERSUNK FLAT HEAD SCREWS - PRODUCT GRADE A (ISO 2009:2011)
    I.S. EN ISO 14586:2011 HEXALOBULAR SOCKET COUNTERSUNK HEAD TAPPING SCREWS
    I.S. EN ISO 7046-1:2011 COUNTERSUNK FLAT HEAD SCREWS (COMMON HEAD STYLE) WITH TYPE H OR TYPE Z CROSS RECESS - PRODUCT GRADE A - PART 1: STEEL OF PROPERTY CLASS 4.8 (ISO 7046-1:2011)
    BS 7496-3:1991 Cross-recessed tapping screws Specification for raised countersunk head screws
    DIN EN ISO 14581 E : 2014 FASTENERS - HEXALOBULAR SOCKET COUNTERSUNK FLAT HEAD SCREWS (ISO 14581:2013)
    DIN ISO 8992:2005-09 Fasteners - General requirements for bolts, screws, studs and nuts (ISO 8992:2005)
    09/30208242 DC : 0 BS ISO 7050 - CROSS RECESSED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS
    ISO 13584-511:2006 Industrial automation systems and integration — Parts library — Part 511: Mechanical systems and components for general use — Reference dictionary for fasteners
    DIN EN ISO 7047:2011-12 Raised countersunk head screws (common head style) with type H or type Z cross recess - Product grade A (ISO 7047:2011)
    UNE-EN ISO 1483:2011 Slotted raised countersunk (oval) head tapping screws (ISO 1483:2011)
    BS EN ISO 1483:2011 Slotted raised countersunk (oval) head tapping screws
    BS EN ISO 7721-2:1995 Countersunk flat head screws Penetration depth of cross recesses
    UNE-EN ISO 1482:2011 Slotted countersunk (flat) head tapping screws (ISO 1482:2011)
    UNE-EN ISO 2009:2012 Slotted countersunk flat head screws - Product grade A (ISO 2009:2011)
    EN ISO 4759-1 : 2000 TOLERANCES FOR FASTENERS - PART 1: BOLTS, SCREWS, STUDS AND NUTS - PRODUCT GRADES A, B AND C
    EN ISO 14586:2011 Hexalobular socket countersunk head tapping screws (ISO 14586:2011)
    UNI EN ISO 7051 : 2012 CROSS-RECESSED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    UNI EN ISO 1483 : 2012 SLOTTED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    UNI EN ISO 1482 : 2012 SLOTTED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS
    UNI EN ISO 2009 : 2012 SLOTTED COUNTERSUNK FLAT HEAD SCREWS - PRODUCT GRADE A
    UNI EN ISO 7050 : 2012 CROSS-RECESSED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS
    UNI EN ISO 2010 : 2012 SLOTTED RAISED COUNTERSUNK HEAD SCREWS - PRODUCT GRADE A
    UNI EN ISO 14587 : 2011 HEXALOBULAR SOCKET RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    UNI EN ISO 7047 : 2012 RAISED COUNTERSUNK HEAD SCREWS (COMMON HEAD STYLE) WITH TYPE H OR TYPE Z CROSS RECESS - PRODUCT GRADE A
    UNI EN ISO 7046-2 : 2012 COUNTERSUNK FLAT HEAD SCREWS (COMMON HEAD STYLE) WITH TYPE H OR TYPE Z CROSS RECESS - PRODUCT GRADE A - PART 2: STEEL SCREWS OF PROPERTY CLASS 8.8, STAINLESS STEEL SCREWS AND NON-FERROUS METAL SCREWS
    UNI EN ISO 7046-1 : 2012 COUNTERSUNK FLAT HEAD SCREWS (COMMON HEAD STYLE) WITH TYPE H OR TYPE Z CROSS RECESS - PRODUCT GRADE A - PART 1: STEEL OF PROPERTY CLASS 4.8
    UNI EN ISO 14586 : 2011 HEXALOBULAR SOCKET COUNTERSUNK HEAD TAPPING SCREWS
    UNI EN ISO 14584 : 2011 HEXALOBULAR SOCKET RAISED COUNTERSUNK HEAD SCREWS
    DIN EN ISO 7050:2011-11 Cross-recessed countersunk (flat) head tapping screws (ISO 7050:2011)
    UNI EN ISO 14581 : 2014 FASTENERS - HEXALOBULAR SOCKET COUNTERSUNK FLAT HEAD SCREWS
    03/308658 DC : DRAFT MAY 2003 EN ISO 15065 - COUNTERSINKS FOR COUNTERSUNK HEAD SCREWS WITH HEAD CONFIGURATION IN ACCORDANCE WITH ISO 7721
    PREN ISO 7050 : DRAFT 2009 CROSS RECESSED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS
    PREN ISO 7051 : DRAFT 2009 CROSS RECESSED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    UNE-EN ISO 14581:2016 Fasteners - Hexalobular socket countersunk flat head screws (ISO 14581:2013)
    DIN EN ISO 2010:2011-12 Slotted raised countersunk head screws - Product grade A (ISO 2010:2011)
    DIN EN ISO 14584:2011-06 Hexalobular socket raised countersunk head screws (ISO 14584:2011)
    DIN EN ISO 2009:2011-12 Slotted countersunk flat head screws - Product grade A (ISO 2009:2011)
    ISO 1483:2011 Slotted raised countersunk (oval) head tapping screws
    ISO 15483:1999 Cross recessed raised countersunk head drilling screws with tapping screw thread
    UNE-EN ISO 7047:2012 Raised countersunk head screws (common head style) with type H or type Z cross recess - Product grade A (ISO 7047:2011)
    BS EN ISO 15483:1999 Cross recessed raised countersunk head drilling screws with tapping screw thread
    BS EN ISO 14584:2011 Hexalobular socket raised countersunk head screws
    ISO 14582:2013 Fasteners — Hexalobular socket countersunk head screws, high head
    BS EN ISO 7046-2:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess. Product grade A Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws
    BS EN ISO 15065:2005 Countersinks for countersunk head screws with head configuration in accordance with ISO 7721
    BS EN ISO 7050:2011 Cross-recessed countersunk (flat) head tapping screws
    BS EN ISO 14586:2011 Hexalobular socket countersunk head tapping screws
    ISO 14586:2011 Hexalobular socket countersunk head tapping screws
    UNE-EN ISO 7046-2:2012 Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws (ISO 7046-2:2011)
    ISO 14587:2011 Hexalobular socket raised countersunk (oval) head tapping screws
    ISO 7051:2011 Cross-recessed raised countersunk (oval) head tapping screws
    UNE-EN ISO 7051:2011 Cross-recessed raised countersunk (oval) head tapping screws (ISO 7051:2011)
    ISO 2009:2011 Slotted countersunk flat head screws Product grade A
    ISO 7046-1:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A Part 1: Steel screws of property class 4.8
    BS EN ISO 14587:2011 Hexalobular socket raised countersunk (oval) head tapping screws
    ISO 14581:2013 Fasteners — Hexalobular socket countersunk flat head screws
    ISO 1482:2011 Slotted countersunk (flat) head tapping screws
    ISO 7046-2:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws
    ISO 7050:2011 Cross-recessed countersunk (flat) head tapping screws
    ISO 7047:2011 Raised countersunk head screws (common head style) with type H or type Z cross recess Product grade A
    ISO 4759-1:2000 Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C
    EN ISO 14584:2011 Hexalobular socket raised countersunk head screws (ISO 14584:2011)
    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 7046-1:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 1: Steel screws of property class 4.8 (ISO 7046-1:2011)
    EN ISO 1482:2011 Slotted countersunk (flat) head tapping screws (ISO 1482:2011)
    EN ISO 14582:2013 Fasteners - Hexalobular socket countersunk head screws, high head (ISO 14582:2013)
    EN ISO 7721-2 : 1994 COUNTERSUNK FLAT HEAD SCREWS - PART 2: PENETRATION DEPTH OF CROSS RECESSES
    EN ISO 7046-2:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws (ISO 7046-2:2011)
    EN ISO 7047:2011 Raised countersunk head screws (common head style) with type H or type Z cross recess - Product grade A (ISO 7047:2011)
    EN ISO 2010:2011 Slotted raised countersunk head screws - Product grade A (ISO 2010:2011)
    EN ISO 15065:2005 Countersinks for countersunk head screws with head configuration in accordance with ISO 7721 (ISO 15065:2005)
    EN ISO 14581:2013 Fasteners - Hexalobular socket countersunk flat head screws (ISO 14581:2013)
    EN ISO 1483:2011 Slotted raised countersunk (oval) head tapping screws (ISO 1483:2011)
    EN ISO 7051:2011 Cross-recessed raised countersunk (oval) head tapping screws (ISO 7051:2011)
    EN ISO 14587:2011 Hexalobular socket raised countersunk (oval) head tapping screws (ISO 14587:2011)
    EN ISO 2009:2011 Slotted countersunk flat head screws - Product grade A (ISO 2009:2011)
    EN ISO 7050:2011 Cross-recessed countersunk (flat) head tapping screws (ISO 7050:2011)
    IS 1367 : Part 1 : 2014 TECHNICAL SUPPLY CONDITIONS FOR THREADED STEEL FASTENERS PART 1 GENERAL REQUIREMENTS FOR BOLTS, SCREWS, STUDS AND NUTS
    DIN EN ISO 14582:2014-02 FASTENERS - HEXALOBULAR SOCKET COUNTERSUNK HEAD SCREWS, HIGH HEAD (ISO 14582:2013)
    DIN EN ISO 1482:2011-10 Slotted countersunk (flat) head tapping screws (ISO 1482:2011)
    BS EN ISO 14581:2013 Fasteners. Hexalobular socket countersunk flat head screws
    09/30208227 DC : 0 BS ISO 1482 - SLOTTED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS
    09/30208245 DC : 0 BS ISO 7051 - CROSS RECESSED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    DIN ISO 1482:1990-08 SLOTTED COUNTERSUNK (FLAT) HEAD TAPPING SCREWS (COMMON HEAD STYLE)
    BS ISO 8992:2005 Fasteners. General requirements for bolts, screws, studs and nuts
    05/30127446 DC : DRAFT JAN 2005 ISO 13584-511 - INDUSTRIAL AUTOMATION SYSTEMS AND INTEGRATION - PARTS LIBRARY - PART 511: MECHANICAL SYSTEMS AND COMPONENTS FOR GENERAL USE - REFERENCE DICTIONARY FOR FASTENERS
    PREN ISO 1483 : DRAFT 2009 SLOTTED RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS
    I.S. EN ISO 14582:2013 FASTENERS - HEXALOBULAR SOCKET COUNTERSUNK HEAD SCREWS, HIGH HEAD (ISO 14582:2013)
    DIN EN ISO 4759-1 E : 2001 TOLERANCES FOR FASTENERS - PART 1: BOLTS, SCREWS, STUDS AND NUTS - PRODUCT GRADES A, B AND C
    BS EN ISO 4759-1:2001 Tolerances for fasteners Bolts, screws, studs and nuts. Product grades A, B and C
    ISO 15065:2005 Countersinks for countersunk head screws with head configuration in accordance with ISO 7721
    ISO 14584:2011 Hexalobular socket raised countersunk head screws
    ISO 2010:2011 Slotted raised countersunk head screws Product grade A
    BS EN ISO 7046-1:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess. Product grade A Steel of property class 4.8
    BS EN ISO 2009:2011 Slotted countersunk flat head screws. Product grade A
    UNE-EN ISO 14587:2011 Hexalobular socket raised countersunk (oval) head tapping screws (ISO 14587:2011)
    BS EN ISO 2010:2011 Slotted raised countersunk head screws. Product grade A
    ISO 15482:1999 Cross recessed countersunk head drilling screws with tapping screw thread
    ISO 7721-2:1990 Countersunk flat head screws — Part 2: Penetration depth of cross recesses
    DIN EN ISO 15065:2005-05 Countersinks for countersunk head screws with head configuration in accordance with ISO 7721 (ISO 15065:2005)
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