ISO 7041:2012

INTERNATIONAL ISO
STANDARD 7041
Fourth edition
2012-05-15
Prevailing torque type hexagon nuts (with
non-metallic insert), style 2 — Property
classes 9 and 12
Écrous hexagonaux autofreinés (à anneau non métallique), style 2 —
Classes de qualité 9 et 12
Reference number
ISO 7041:2012(E)
©
ISO 2012

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ISO 7041:2012(E)
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ii © ISO 2012 – All rights reserved

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ISO 7041:2012(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 7041 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 12, Fasteners with
metric internal thread.
This fourth edition cancels and replaces the third edition (ISO 7041:2002), of which it constitutes a minor revision.
© ISO 2012 – All rights reserved iii

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INTERNATIONAL STANDARD ISO 7041:2012(E)
Prevailing torque type hexagon nuts (with non-metallic insert),
style 2 — Property classes 9 and 12
1 Scope
This International Standard specifies the characteristics of prevailing torque type hexagon nuts (with non-
metallic insert), style 2, with threads from M5 up to and including M36, in product grade A for threads up to and
including M16, and product grade B for threads above M16, and with property classes 9 and 12.
NOTE The dimensions of the nuts correspond to those given in ISO 4033 plus prevailing torque feature.
If other specifications are required, they can be selected from existing International Standards, e.g. ISO 261,
ISO 724, ISO 898-2, ISO 965-2, ISO 2320 and ISO 4759-1.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 225, Fasteners — Bolts, screws, studs and nuts — Symbols and descriptions of dimensions
ISO 261, ISO general purpose metric screw threads — General plan
ISO 724, ISO general-purpose metric screw threads — Basic dimensions
ISO 89
...