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ISO 7721:1983

Current

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

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

Committee
ISO/TC 2/SC 11
DevelopmentNote
Also numbered as BS EN 27721 (10/2005)
DocumentType
Standard
Pages
3
PublisherName
International Organization for Standardization
Status
Current

Standards Relationship
JIS B 1013:1994 Identical
NF EN 27721 : 1992 Identical
BIS IS 11362 : 1985(R2001) Identical
EN 27721:1991 Identical
NEN ISO 7721 : 1992 Identical
I.S. EN 27721:1992 Identical
NBN EN 27721 : 1992 Identical
UNE-EN 27721:1992 Identical
PN 93/M-82251 : 1993 Identical
NS ISO 7721 : 1ED 1992 Identical
PN EN 27721 : 2014 Identical
DIN EN 27721:1992-02 Corresponds

BS EN ISO 14582:2013 Fasteners. Hexalobular socket countersunk head screws, high head
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 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 (ISO 4759-1:2000)
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 (ISO 15482:1999)
EN ISO 15483:1999 Cross recessed raised countersunk head drilling screws with tapping screw thread (ISO 15483:1999)
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 (ISO 7721-2:1990)
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<br>
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)
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); German version EN ISO 15065:2005

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