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CEN
EN 493 : 1992

EN 493 : 1992

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

FASTENERS - SURFACE DISCONTINUITIES - NUTS

Superseded date

07-01-2004

Published date

01-12-2013

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Types, causes, appearance and limits of surface
   discontinuities
4 Inspection and evaluation procedure
Annex A (normative) Widening test on nuts
Annex B (normative) Cone proof load test on nuts

Sets limits for several types of surface discontinuities on nuts of product grades A and B with thread diameters from 5 mm to 39 mm inclusive. Also includes detailed annexes.

Committee
TC 185
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

Standards Relationship
DIN EN 493:1992-07 Identical
BS EN 493:1992 Identical
NS EN 493 : 1ED 1992 Identical
SNV NF EN 493 : 1992 Identical
SNV DIN EN 493 : 1992 Identical
NEN EN 493 : 1993 Identical
UNE-EN 493:1993 Identical
NF EN 493 : 1992 Identical
I.S. EN 493:1993 Identical
NBN EN 493 : 1992 Identical
UNI EN 493 : 1993 Identical

02/704463 DC : DRAFT MAR 2002 PREN 14399-4 - HIGH-STRENGTH STRUCTURAL BOLTING FOR PRELOADING - PART 4: SYSTEM HV - HEXAGON BOLT AND NUT ASSEMBLIES
DIN 6915:1999-12 HEXAGON NUTS WITH LARGE WIDTHS ACROSS FLATS FOR HIGH STRENGTH STRUCTURAL BOLTING
DIN EN 14218 E : 2003 HEXAGON NUTS WITH FLANGE - FINE PITCH THREAD
BS EN 14218:2003 Hexagon nuts with flange. Fine pitch thread
DIN EN 1664:1998-02 PREVAILING TORQUE TYPE - ALL-METAL HEXAGON NUTS WITH FLANGE
02/704462 DC : DRAFT MAR 2002 PREN 14399-3 - HIGH-STRENGTH STRUCTURAL BOLTING FOR PRELOADING - PART 3: SYSTEM HR - HEXAGON BOLT AND NUT ASSEMBLIES
DIN EN 1663:1998-02 PREVAILING TORQUE TYPE HEXAGON NUTS WITH FLANGE (WITH NON-METALLIC INSERT)
DIN EN 1667:1998-02 PREVAILING TORQUE TYPE ALL HEXAGON NUTS WITH FLANGE, WITH METRIC FINE PITCH THREAD
BS EN 1664:1998 Prevailing torque type all-metal hexagon nuts with flange
EN 1666:1997 Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread (ISO 12125:1997, modified)
DIN EN 1666:1998-02 PREVAILING TORQUE TYPE HEXAGON NUTS WITH FLANGE (WITH NON-METALLIC INSERT), WITH METRIC FINE PITCH THREAD
BS EN 1661:1998 Hexagon nuts with flange
BS EN 1663:1998 Prevailing torque type hexagon nuts with flange (with non-metallic insert)
EN 1664:1997 Prevailing torque type all-metal hexagon nuts with flange (ISO 7044:1997, modified)
EN 1663:1997 Prevailing torque type hexagon nuts with flange (with non-metallic insert) (ISO 7043:1997, modified)
EN 1661:1997 Hexagon nuts with flange (ISO/DIS 4161:1996, modified)
EN 14218:2003 Hexagon nuts with flange - Fine pitch thread (ISO 10663:1999, modified)
EN 1667:1997 Prevailing torque type all-metal hexagon nuts with flange metric fine pitch thread (ISO 12126:1997, modified)
BS EN 1667:1998 Prevailing torque type all-metal hexagon nuts with flange with metric fine pitch thread
BS EN 1666:1998 Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread
DIN EN 14218:2003-09 HEXAGON NUTS WITH FLANGE - FINE PITCH THREAD

ISO 2320:2015 Fasteners Prevailing torque steel nuts Functional properties
EN 20898-2 : 1993 MECHANICAL PROPERTIES OF FASTENERS - PART 2: NUTS WITH SPECIFIED PROOF LOAD VALUES - COARSE THREAD (ISO 898-2:1992)
ISO 898-6:1994 Mechanical properties of fasteners Part 6: Nuts with specified proof load values Fine pitch thread
ISO 468:1982 Surface roughness — Parameters, their values and general rules for specifying requirements
ISO 3269:2000 Fasteners Acceptance inspection

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