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BS EN ISO 2320:2015

Current
Current

The latest, up-to-date edition.

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

Hardcopy , PDF

Language(s)

English

Published date

31-01-2016

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Thread
6 Lubrication
7 Mechanical properties of prevailing torque nuts
8 Functional requirements for prevailing torque properties
9 Test method
Annex A (normative) - Temperature influence on prevailing
        torques of nuts with nonmetallic insert
Annex B (informative) - Principles for the evaluation of the
        total coefficient of friction, [mu]tot
Annex C (informative) - Test clamp force and prevailing
        torques for prevailing torque nuts M3 and M4 in
        property classes 8 and 10
Bibliography

Describes the functional properties for prevailing torque steel nuts when tested at an ambient temperature range of +10 degrees C to +35 degrees C.

Committee
FME/9
DevelopmentNote
Supersedes 94/709147 DC. Partially supersedes BS 4929-1(1973). (06/2005) Supersedes 14/30298880 DC. (01/2016)
DocumentType
Standard
Pages
30
PublisherName
British Standards Institution
Status
Current
Supersedes

DEFSTAN 02-862(PT1)/2(2007) : 2007 FASTENERS - PART 1: GENERAL
DEFSTAN 02-862(PT1)/3(2011) : 2011 NAVAL FASTENERS - PART 1: MATERIAL SELECTION AND USE
DEFSTAN 02-305/2(2003) : 2003 REQUIREMENTS FOR GEARING - MAIN PROPULSION
DEFSTAN 02-305/3(2010) : 2010 REQUIREMENTS FOR GEARING - MAIN PROPULSION
DEFSTAN 07-281/2(2017) : 2017 SPECIFICATION FOR THE TYPE X RESILIENT MOUNT AND THE LEAF SPRING ASSEMBLY OF THE TYPE Y RESILIENT MOUNT

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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PDF - English
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