oSIST prEN ISO 8675:2016
(Main)Hexagon thin nuts (style 0) chamfered, with fine pitch thread - Product grades A and B (ISO/DIS 8675:2016)
Hexagon thin nuts (style 0) chamfered, with fine pitch thread - Product grades A and B (ISO/DIS 8675:2016)
2017-11-17: Project cancelled in ISO/CS (see dataservice on 2017-11-16).
Niedrige Sechskantmuttern mit Fase (Typ 0), mit Feingewinde - Produktklassen A und B (ISO/DIS 8675:2016)
Écrous hexagonaux bas (style 0) chanfreinés, à pas fin - Grades A et B (ISO/DIS 8675:2016)
Šestrobe nizke matice (tip 0) s posnetjem z drobnim metrskim navojem - Razreda izdelave A in B (ISO/DIS 8675:2016)
General Information
- Status
- Not Published
- Public Enquiry End Date
- 26-Jun-2016
- Technical Committee
- ISEL - Mechanical elements
- Current Stage
- 98 - Abandoned project (Adopted Project)
- Start Date
- 21-Jan-2020
- Due Date
- 26-Jan-2020
- Completion Date
- 21-Jan-2020
Relations
- Effective Date
- 18-Jan-2023
- Effective Date
- 01-Jun-2016
Overview
prEN ISO 8675 / ISO/DIS 8675:2016 defines the characteristics of hexagon thin nuts (style 0) with fine pitch metric threads. It covers nominal diameters from 8 mm to 64 mm and specifies two product grades: Grade A for D ≤ 16 mm and Grade B for D > 16 mm. The draft standard addresses dimensional details, material and mechanical requirements, tolerances, finishes and marking/ designation rules for chamfered thin hex nuts used as jam nuts or space-saving fasteners.
Note: this document was issued as an ISO draft (ISO/DIS 8675:2016) under ISO/CEN parallel processing. The project entry shows a later cancellation in ISO Central Secretariat (2017-11-17). Verify current status with national bodies or ISO data services before applying.
Key topics and technical requirements
- Dimensions and threads: Preferred and non-preferred fine-pitch metric threads are listed for M8×1 through M64×4. Detailed dimensional limits (e.g., dw, e, s, m) are given in tables.
- Product grades: Grade A (D ≤ 16 mm) and Grade B (D > 16 mm) define dimensional and tolerance expectations for product grading.
- Mechanical properties: Steel nuts reference ISO 898-2 for property classes; stainless-steel nuts follow ISO 3506-2 with revised property-class ranges.
- Chamfer geometry: Chamfer angle specified as 110° to 120° (updated from earlier values).
- Thread tolerance class: Default internal thread tolerance 6H; thread standards referenced include ISO 262, ISO 724, ISO 965-2.
- Finish and coatings: Electroplating, passivation and zinc-flake coatings referenced to ISO 4042, ISO 16048, ISO 10683. Surface discontinuities per ISO 6157-2.
- Inspection and acceptance: Acceptance inspection guided by ISO 3269.
- Warning: Thin nuts have reduced loadability versus standard or tall nuts and are not designed to resist thread stripping (see ISO 898-2).
Applications and users
Who uses ISO 8675 content:
- Fastener manufacturers producing thin hex (jam) nuts with fine pitch metric threads.
- Mechanical engineers and product designers specifying compact fastening solutions or jam-nut assemblies.
- Procurement and quality assurance teams verifying dimensional tolerances, property classes and finishes.
- Maintenance and assembly technicians requiring compatibility data for fine-pitch fasteners.
Typical applications:
- Space-constrained assemblies (automotive, instrumentation, hydraulic components)
- Locking/jamming arrangements where a thin nut is paired with a full-height nut
- Fine adjustment and precision fastening using fine-pitch threads
Related standards
Normative references include: ISO 225, ISO 262, ISO 724, ISO 898-2, ISO 965-2, ISO 3269, ISO 3506-2, ISO 4042, ISO 4759-1, ISO 6157-2, ISO 10683, ISO 16048 and guidance in ISO/TR 16224 on nut design.
For compliance, always confirm the current status of ISO/DIS 8675 and any national adoptions or cancellations before applying requirements.
Frequently Asked Questions
oSIST prEN ISO 8675:2016 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Hexagon thin nuts (style 0) chamfered, with fine pitch thread - Product grades A and B (ISO/DIS 8675:2016)". This standard covers: 2017-11-17: Project cancelled in ISO/CS (see dataservice on 2017-11-16).
2017-11-17: Project cancelled in ISO/CS (see dataservice on 2017-11-16).
oSIST prEN ISO 8675:2016 is classified under the following ICS (International Classification for Standards) categories: 21.040.10 - Metric screw threads; 21.060.20 - Nuts. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN ISO 8675:2016 has the following relationships with other standards: It is inter standard links to SIST EN ISO 8675:2013, SIST EN ISO 8675:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
oSIST prEN ISO 8675:2016 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2016
Šestrobe nizke matice (tip 0) s posnetjem z drobnim metrskim navojem - Razreda
izdelave A in B (ISO/DIS 8675:2016)
Hexagon thin nuts (style 0) chamfered, with fine pitch thread - Product grades A and B
(ISO/DIS 8675:2016)
Niedrige Sechskantmuttern mit Fase (Typ 0), mit Feingewinde - Produktklassen A und B
(ISO/DIS 8675:2016)
Écrous hexagonaux bas (style 0) chanfreinés, à pas fin - Grades A et B (ISO/DIS
8675:2016)
Ta slovenski standard je istoveten z: prEN ISO 8675
ICS:
21.040.10 Metrski navoji Metric screw threads
21.060.20 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT INTERNATIONAL STANDARD
ISO/DIS 8675
ISO/TC 2/SC 12 Secretariat: DIN
Voting begins on: Voting terminates on:
2016-03-31 2016-06-29
Hexagon thin nuts (style 0) chamfered, with fine pitch
thread — Product grades A and B
Écrous hexagonaux bas (style 0) chanfreinés, à pas fin — Grades A et B
ICS: 21.060.20
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for
Standardization (ISO), and processed under the ISO lead mode of collaboration
as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel three month enquiry.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 8675:2016(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2016
ISO/DIS 8675:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2016 – All rights reserved
ISO/DIS 8675:2016(E)
Foreword
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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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO's adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 2, Fasteners, Subcommittee SC 12, Fasteners
with metric internal thread.
This fourth edition cancels and replaces the third edition (ISO 8675:2012).
This standard differs from ISO 8675:2012 as follows:
— the Scope has been updated;
— a warning and a sentence have been added in the scope for the use of thin nuts;
— the chamfer angle has been improved from 90° to 120°to 110°to 120°;
— threads M10x1,25 and M20x2 have been moved to preferred threads table;
— non-preferred threads have been completed;
— for steel nuts, quenching and tempering have been specified in accordance with ISO 898-2 as
mandatory or optional;
— the reference to ISO/TR 16224 for nut design has been added;
— for stainless-steel nuts, the property classes have been revised in accordance with diameter ranges.
ISO/DIS 8675:2016(E)
Hexagon thin nuts (style 0) chamfered, with fine pitch thread —
Product grades A and B
1 Scope
This International Standard specifies the characteristics of hexagon thin nuts (style 0) with fine pitch
thread with nominal diameter from 8 mm through 64 mm, with product grade A for nominal diameters
D 16 mm and product grade B for nominal diameters D 16 mm.
Thin nuts used as jam nuts shall be assembled together with a regular nut or a high nut.
WARNING
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