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ISO 2320:2015

Current
Current

The latest, up-to-date edition.

Fasteners Prevailing torque steel nuts Functional properties
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

30-11-2015

ISO 2320:2015 specifies the functional properties for prevailing torque steel nuts when tested at an ambient temperature range of +10 C to +35 C. It includes a combined test method to determine the prevailing torque properties and the torque/clamp force properties at the same time.

It applies to prevailing torque all metal type nuts and prevailing torque non-metallic insert type nuts:

- with triangular ISO thread in accordance with ISO 681;

- with diameter/pitch combination in accordance with ISO 261 and ISO 262;

- with coarse pitch thread M5 to M39 or with fine pitch thread M8 1 to M39 3;

- with thread tolerances in accordance with ISO 965-2;

- with mechanical properties in accordance with ISO 8982;

Prevailing torque values specified in this standard are based on laboratory test conditions.

NOTE 1 Actual prevailing torques in practical application can vary.

NOTE 2 All metal type nuts conforming to the requirements of this International Standard are used in applications ranging from 50 C to +150 C.

NOTE 3 Non-metallic insert type nuts conforming to the requirements of this International Standard are used in applications ranging from 50 C to +120 C.

WARNING ? Temperatures outside the ambient temperature range can influence the functional properties (torque/clamp force and prevailing torque properties), see Annex A.

DevelopmentNote
Supersedes ISO/DIS 2320. (12/2015)
DocumentType
Standard
Pages
20
PublisherName
International Organization for Standardization
Status
Current
Supersedes

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BS ISO 7041:2012 Prevailing torque type hexagon nuts (with non-metallic insert), style 2. Property classes 9 and 12
14/30298932 DC : 0 BS EN ISO 10484 - FASTENERS - WIDENING TEST ON NUTS
I.S. EN ISO 898-2:2012 MECHANICAL PROPERTIES OF FASTENERS MADE OF CARBON STEEL AND ALLOY STEEL - PART 2: NUTS WITH SPECIFIED PROPERTY CLASSES - COARSE THREAD AND FINE PITCH THREAD (ISO 898-2:2012)
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DIN EN 1090-3:2008-09 EXECUTION OF STEEL AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL RULES FOR EXECUTION OF ALUMINIUM STRUCTURES
BS EN 1090-3:2008 Execution of steel structures and aluminium structures Technical requirements for aluminium structures
I.S. EN ISO 3269:2000 FASTENERS - ACCEPTANCE INSPECTION
DIN EN ISO 7719:2016-05 (Draft) PREVAILING TORQUE TYPE ALL-METAL HEXAGON REGULAR NUTS - PROPERTY CLASSES 5, 8 AND 10 (ISO 7719:2012)
DIN EN ISO 10512:2016-05 (Draft) PREVAILING TORQUE TYPE HEXAGON REGULAR NUTS (WITH NON-METALLIC INSERT) WITH METRIC FINE PITCH THREAD - PROPERTY CLASSES 6, 8 AND 10 (ISO 10512:2012)
DIN EN ISO 7040:2016-05 (Draft) PREVAILING TORQUE TYPE HEXAGON REGULAR NUTS (WITH NON-METALLIC INSERT) - PROPERTY CLASSES 5, 8 AND 10 (ISO 7040:2012)
DIN EN ISO 10484:2014-06 (Draft) WIDENING TEST ON NUTS
BS EN 493:1992 Fasteners. Surface discontinuities. Nuts
BS EN ISO 10484:2004 Widening test on nuts
BS EN ISO 7719:2012 Prevailing torque type all-metal hexagon regular nuts. Property classes 5, 8 and 10
UNE-EN ISO 10513:2013 Prevailing torque type all-metal hexagon high nuts with metric fine pitch thread - Property classes 8, 10 and 12 (ISO 10513:2012)
DIN EN 1090-2:2011-10 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
IS 1367 : Part 1 : 2014 TECHNICAL SUPPLY CONDITIONS FOR THREADED STEEL FASTENERS PART 1 GENERAL REQUIREMENTS FOR BOLTS, SCREWS, STUDS AND NUTS<br>
ISO 16228:2017 Fasteners — Types of inspection documents
PREN 1090-3 : DRAFT 2017 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
BS ISO 7720:2012 Prevailing torque type all-metal hexagon nuts, style 2. Property class 9
15/30320416 DC : 0 BS EN 1090-2 - EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
BS ISO 10484 : 97 AMD 15307 WIDENING TEST ON NUTS
PREN 1090-2 : DRAFT 2015 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
UNE-EN 1090-2:2011 Execution of steel structures and aluminium structures - Part 2: Technical requirements for steel structures
I.S. EN 1090-3:2008 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
UNE-EN 15048-2:2017 Non-preloaded structural bolting assemblies - Part 2: Fitness for purpose
ISO 8992:2005 Fasteners — General requirements for bolts, screws, studs and nuts
BS EN 1090-2 : 2008 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
DIN EN 1090-2:2015-07 (Draft) EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
UNI EN 1090-2 : 2011 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
DIN EN 1993-1-8:2010-12 Eurocode 3: Design of steel structures - Part 1-8: Design of joints (includes Corrigendum AC:2009)
UNE-EN ISO 10512:2013 Prevailing torque type hexagon regular nuts (with non-metallic insert) with metric fine pitch thread - Property classes 6, 8 and 10 (ISO 10512:2012)
I.S. EN ISO 7719:2012 PREVAILING TORQUE TYPE ALL-METAL HEXAGON REGULAR NUTS - PROPERTY CLASSES 5, 8 AND 10 (ISO 7719:2012)
I.S. EN ISO 7042:2012 PREVAILING TORQUE TYPE ALL-METAL HEXAGON HIGH NUTS - PROPERTY CLASSES 5, 8, 10 AND 12 (ISO 7042:2012)
I.S. EN ISO 10512:2012 PREVAILING TORQUE TYPE HEXAGON REGULAR NUTS (WITH NON-METALLIC INSERT) WITH METRIC FINE PITCH THREAD - PROPERTY CLASSES 6, 8 AND 10 (ISO 10512:2012)
I.S. EN ISO 10511:2012 PREVAILING TORQUE TYPE HEXAGON THIN NUTS (WITH NON-METALLIC INSERT) (ISO 10511:2012)
I.S. EN ISO 10513:2012 PREVAILING TORQUE TYPE ALL-METAL HEXAGON HIGH NUTS WITH METRIC FINE PITCH THREAD - PROPERTY CLASSES 8, 10 AND 12 (ISO 10513:2012)
I.S. EN 15048-2:2016 NON-PRELOADED STRUCTURAL BOLTING ASSEMBLIES - PART 2: FITNESS FOR PURPOSE
I.S. EN ISO 7040:2012 PREVAILING TORQUE TYPE HEXAGON REGULAR NUTS (WITH NON-METALLIC INSERT) - PROPERTY CLASSES 5, 8 AND 10 (ISO 7040:2012)
DIN EN ISO 10484:2004-10 Widening test on nuts (ISO 10484:1997)
VDI/VDE 2251 Blatt 1.1:2016-02 Bolted joints - Tensioned joints - Precision engineering components
ISO 7041:2012 Prevailing torque type hexagon nuts (with non-metallic insert), style 2 Property classes 9 and 12
I.S. EN 493:1993 FASTENERS - SURFACE DISCONTINUITIES - NUTS
16/30337591 DC : DRAFT APR 2016 BS ISO 7043 - PREVAILING TORQUE HEXAGON HIGH NUTS WITH FLANGE (WITH NON-METALLIC INSERT) - PRODUCT GRADES A AND B
16/30337584 DC : 0 BS ISO 7041 - PREVAILING TORQUE HEXAGON HIGH NUTS (WITH NON-METALLIC INSERT) - PRODUCT GRADES A AND B
15/30280562 DC : 0 BS EN ISO 16228 - FASTENERS - INSPECTION DOCUMENTS
DIN ISO 8992:2005-09 Fasteners - General requirements for bolts, screws, studs and nuts (ISO 8992:2005)
16/30337580 DC : 0 BS EN ISO 7040 - PREVAILING TORQUE HEXAGON REGULAR NUTS (WITH NON-METALLIC INSERT) - PRODUCT GRADES A AND B
ISO 12126:2012 Prevailing torque type all-metal hexagon nuts with flange with metric fine pitch thread, style 2 — Product grades A and B
BS EN ISO 898-2:2012 Mechanical properties of fasteners made of carbon steel and alloy steel Nuts with specified property classes. Coarse thread and fine pitch thread
ISO 7044:2012 Prevailing torque type all-metal hexagon nuts with flange, style 2 — Product grades A and B
UNE-EN ISO 898-2:2013 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 2: Nuts with specified property classes - Coarse thread and fine pitch thread (ISO 898-2:2012)
ISO 12125:2012 Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread, style 2 — Product grades A and B
EN 1090-2:2008+A1:2011 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
EN ISO 16228:2018 Fasteners - Types of inspection documents (ISO 16228:2017)
EN 1090-3:2008 Execution of steel structures and aluminium structures - Part 3: Technical requirements for aluminium structures
DIN EN ISO 7042:2016-05 (Draft) PREVAILING TORQUE TYPE ALL-METAL HEXAGON HIGH NUTS - PROPERTY CLASSES 5, 8, 10 AND 12 (ISO 7042:2012)
BS EN ISO 7042:2012 Prevailing torque type all-metal hexagon high nuts. Property classes 5, 8, 10 and 12
BS EN ISO 10513:2012 Prevailing torque type all-metal hexagon high nuts with metric fine pitch thread. Property classes 8, 10 and 12
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)
EN ISO 10513:2012 Prevailing torque type all-metal hexagon high nuts with metric fine pitch thread - Property classes 8, 10 and 12 (ISO 10513:2012)
EN ISO 3269:2000 FASTENERS - ACCEPTANCE INSPECTION
UNI EN ISO 7042 : 2013 PREVAILING TORQUE TYPE ALL-METAL HEXAGON HIGH NUTS - PROPERTY CLASSES 5, 8, 10 AND 12
UNI EN ISO 10512 : 2013 PREVAILING TORQUE TYPE HEXAGON REGULAR NUTS (WITH NON-METALLIC INSERT) WITH METRIC FINE PITCH THREAD - PROPERTY CLASSES 6, 8 AND 10
UNI EN ISO 7040 : 2013 PREVAILING TORQUE TYPE HEXAGON REGULAR NUTS (WITH NON-METALLIC INSERT) - PROPERTY CLASSES 5, 8 AND 10
UNI EN ISO 7719 : 2013 PREVAILING TORQUE TYPE ALL-METAL HEXAGON REGULAR NUTS - PROPERTY CLASSES 5, 8 AND 10
UNI EN ISO 10513 : 2013 PREVAILING TORQUE TYPE ALL-METAL HEXAGON HIGH NUTS WITH METRIC FINE PITCH THREAD - PROPERTY CLASSES 8, 10 AND 12
UNI EN 1993-1-8 : 2005 EUROCODE 3 - DESIGN OF STEEL STRUCTURES - PART 1-8: DESIGN OF JOINTS
UNI EN ISO 10511 : 2013 PREVAILING TORQUE TYPE HEXAGON THIN NUTS (WITH NON-METALLIC INSERT)
10/30165716 DC : 0 BS ISO 898-6 - MECHANICAL PROPERTIES OF FASTENERS - PART 6: NUTS WITH SPECIFIED PROOF LOAD VALUES - FINE PITCH THREAD
I.S. EN ISO 16228:2018 FASTENERS - TYPES OF INSPECTION DOCUMENTS (ISO 16228:2017)
UNI EN 1090-3 : 2008 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
BIS IS 800 : 2007 AMD 1 2012 GENERAL CONSTRUCTION IN STEEL - CODE OF PRACTICE
16/30337630 DC BS EN ISO 7719. Prevailing torque (all-metal) hexagon regular nuts. Product grades A and B
ISO 7043:2012 Prevailing torque type hexagon nuts with flange (with non-metallic insert), style 2 — Product grades A and B
UNI EN ISO 898-2 : 2012 MECHANICAL PROPERTIES OF FASTENERS MADE OF CARBON STEEL AND ALLOY STEEL - PART 2: NUTS WITH SPECIFIED PROPERTY CLASSES - COARSE THREAD AND FINE PITCH THREAD
17/30348949 DC : 0 BS EN 1090-3 - EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 3: TECHNICAL REQUIREMENTS FOR ALUMINIUM STRUCTURES
DIN EN 15048-2:2016-09 NON-PRELOADED STRUCTURAL BOLTING ASSEMBLIES - PART 2: FITNESS FOR PURPOSE
DIN EN ISO 6157-2:2004-10 Fasteners - Surface discontinuities - Part 2: Nuts (ISO 6157-2:1995)
BS EN ISO 10512:2012 Prevailing torque type hexagon regular nuts (with non-metallic insert) with metric fine pitch thread. Property classes 6, 8 and 10
BS EN ISO 10511:2012 Prevailing torque type hexagon thin nuts (with non-metallic insert)
BS EN ISO 3269:2001 Fasteners. Acceptance inspection
ISO 7042:2012 Prevailing torque type all-metal hexagon high nuts — Property classes 5, 8, 10 and 12
ISO 3269:2000 Fasteners Acceptance inspection
ISO 6157-2:1995 Fasteners Surface discontinuities Part 2: Nuts
BS EN 1663:1998 Prevailing torque type hexagon nuts with flange (with non-metallic insert)
BS EN 15048-2:2007 Non-preloaded structural bolting assemblies Suitability test
ISO 7719:2012 Prevailing torque type all-metal hexagon regular nuts — Property classes 5, 8 and 10
ISO 10511:2012 Prevailing torque type hexagon thin nuts (with non-metallic insert)
ISO 898-2:2012 Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with specified property classes — Coarse thread and fine pitch thread
ISO 10513:2012 Prevailing torque type all-metal hexagon high nuts with metric fine pitch thread — Property classes 8, 10 and 12
BS EN 1993-1-8:2005 Eurocode 3. Design of steel structures Design of joints
BS EN ISO 6157-2:2004 Fasteners. Surface discontinuities Nuts
ISO 7040:2012 Prevailing torque type hexagon regular nuts (with non-metallic insert) — Property classes 5, 8 and 10
UNE-EN ISO 7719:2013 Prevailing torque type all-metal hexagon regular nuts - Property classes 5, 8 and 10 (ISO 7719:2012)
ISO 10512:2012 Prevailing torque type hexagon regular nuts (with non-metallic insert) with metric fine pitch thread — Property classes 6, 8 and 10
EN ISO 7040:2012 Prevailing torque type hexagon regular nuts (with non-metallic insert) - Property classes 5, 8 and 10 (ISO 7040:2012)
EN 1664:1997 Prevailing torque type all-metal hexagon nuts with flange (ISO 7044:1997, modified)
EN ISO 10484:2004 Widening test on nuts (ISO 10484:1997)
EN ISO 7042:2012 Prevailing torque type all-metal hexagon high nuts - Property classes 5, 8, 10 and 12 (ISO 7042:2012)
EN 1663:1997 Prevailing torque type hexagon nuts with flange (with non-metallic insert) (ISO 7043:1997, modified)
EN 1993-1-8:2005/AC:2009 EUROCODE 3: DESIGN OF STEEL STRUCTURES - PART 1-8: DESIGN OF JOINTS
EN ISO 7719:2012 Prevailing torque type all-metal hexagon regular nuts - Property classes 5, 8 and 10 (ISO 7719:2012)
EN ISO 10512:2012 Prevailing torque type hexagon regular nuts (with non-metallic insert) with metric fine pitch thread - Property classes 6, 8 and 10 (ISO 10512:2012)
EN 15048-2:2016 Non-preloaded structural bolting assemblies - Part 2: Fitness for purpose
EN 1667:1997 Prevailing torque type all-metal hexagon nuts with flange metric fine pitch thread (ISO 12126:1997, modified)
EN ISO 6157-2:2004 Fasteners - Surface discontinuities - Part 2: Nuts (ISO 6157-2:1995)
EN 493 : 1992 FASTENERS - SURFACE DISCONTINUITIES - NUTS
EN ISO 10511:2012 Prevailing torque type hexagon thin nuts (with non-metallic insert) (ISO 10511:2012)
I.S. EN ISO 6157-2:2004 FASTENERS - SURFACE DISCONTINUITIES - PART 2: NUTS
I.S. EN ISO 10484:2004 WIDENING TEST ON NUTS
10/30165712 DC : 0 BS ISO 898-2 - MECHANICAL PROPERTIES OF FASTENERS - PART 2: NUTS WITH SPECIFIED PROOF LOAD VALUES; COARSE THREAD
BS ISO 8992:2005 Fasteners. General requirements for bolts, screws, studs and nuts
BS EN ISO 16228:2018 Fasteners. Types of inspection documents
I.S. EN 1090-2:2008 EXECUTION OF STEEL STRUCTURES AND ALUMINIUM STRUCTURES - PART 2: TECHNICAL REQUIREMENTS FOR STEEL STRUCTURES
UNE-EN 1090-3:2011 Execution of steel structures and aluminium structures - Part 3: Technical requirements for aluminium structures
DIN EN ISO 10511:2016-05 (Draft) PREVAILING TORQUE TYPE HEXAGON THIN NUTS (WITH NON-METALLIC INSERT) (ISO 10511:2012)
DIN EN ISO 10513:2016-05 (Draft) PREVAILING TORQUE TYPE ALL-METAL HEXAGON HIGH NUTS WITH METRIC FINE PITCH THREAD - PROPERTY CLASSES 8, 10 AND 12 (ISO 10513:2012)
UNE-EN ISO 7042:2013 Prevailing torque type all-metal hexagon high nuts - Property classes 5, 8, 10 and 12 (ISO 7042:2012)
UNE-EN ISO 7040:2013 Prevailing torque type hexagon regular nuts (with non-metallic insert) - Property classes 5, 8 and 10 (ISO 7040:2012)
UNE-EN ISO 10511:2013 Prevailing torque type hexagon thin nuts (with non-metallic insert) (ISO 10511:2012)
ISO 10484:1997 Widening test on nuts
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
BS EN ISO 7040:2012 Prevailing torque type hexagon regular nuts (with non-metallic insert). Property classes 5, 8 and 10
DIN EN 493:1992-07 FASTENERS - SURFACE DISCONTINUITIES - NUTS
DIN EN ISO 898-2:2012-08 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 2: Nuts with specified property classes - Coarse thread and fine pitch thread (ISO 898-2:2012)
ASME B18.16M : 2004 PREVAILING-TORQUE-TYPE STEEL METRIC HEX NUTS AND HEX FLANGE NUTS
ASME B18.16M : 2004 : R2009 PREVAILING-TORQUE-TYPE STEEL METRIC HEX NUTS AND HEX FLANGE NUTS
ASME B18.16M : 2004 : R2016 PREVAILING-TORQUE-TYPE STEEL METRIC HEX NUTS AND HEX FLANGE NUTS

ISO 16047:2005 Fasteners — Torque/clamp force testing
ISO 898-2:2012 Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with specified property classes — Coarse thread and fine pitch thread
ISO 965-2:1998 ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general purpose external and internal screw threads — Medium quality
ISO 262:1998 ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 68-1:1998 ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads
ISO 273:1979 Fasteners — Clearance holes for bolts and screws
ISO 261:1998 ISO general purpose metric screw threads General plan
ISO 898-1:2013 Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread

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