oSIST prEN ISO 4035:2022
(Main)Fasteners - Hexagon thin nuts (style 0) (ISO/DIS 4035:2022)
Fasteners - Hexagon thin nuts (style 0) (ISO/DIS 4035:2022)
Mechanische Verbindungselemente – Niedrige Sechskantmuttern (Typ 0) (ISO/DIS 4035:2022)
Diese Internationale Norm legt Eigenschaften von flachen Sechskantmuttern (Typ 0) mit Grobgewinde mit Durchmessern von M1,6 bis M64, in Produktklasse A für Durchmesser ≤ M16 und Produktklasse B für Durchmesser > M16, fest.
Flache Muttern, die als Kontermuttern eingesetzt werden, müssen zusammen mit einer normalen oder hohen Mutter montiert werden.
WARNUNG — Flache Muttern (Typ 0) haben im Vergleich zu normalen oder hohen Muttern eine reduzierte Ladekapazität und bieten keinen Widerstand gegen das Abstreifen vom Gewinde (siehe ISO 898-2).
Fixations - Écrous bas hexagonaux (style 0) (ISO/DIS 4035:2022)
Vezni elementi - Šestrobe nizke matice (tip 0) (ISO/DIS 4035:2022)
General Information
- Status
- Not Published
- Public Enquiry End Date
- 11-Jul-2022
- Technical Committee
- ISEL - Mechanical elements
- Current Stage
- 98 - Abandoned project (Adopted Project)
- Start Date
- 14-Jun-2024
- Due Date
- 19-Jun-2024
- Completion Date
- 14-Jun-2024
Relations
- Effective Date
- 18-Jan-2023
- Effective Date
- 04-Nov-2020
Overview
prEN ISO 4035 (ISO/DIS 4035:2022) is a fasteners standard that specifies the characteristics of hexagon thin nuts (style 0) in steel and stainless steel, for metric coarse pitch threads M1.6 to M64, and for product grades A and B. It covers dimensions, mechanical and material requirements, marking, labelling and designation rules. The document includes a normative Annex A for sizes D < M5 and D > M39, and warns that thin nuts have reduced loadability compared with regular or high nuts and are not designed to provide resistance to thread stripping.
Key topics and technical requirements
- Scope and use
- Applies to hexagon thin nuts (style 0) intended often as jam nuts (to be used together with a regular/high nut).
- Thread sizes covered: M1.6 up to M64; main dimension tables for M5–M39, Annex A for sizes outside that range.
- Dimensions and tolerances
- Dimensioning in accordance with ISO 225 symbols and the standard’s figures and tables (M5–M39 in main tables; D < M5 and D > M39 in Annex A).
- Thread tolerance class: 6H (uncoated), with notes on possible different tolerance position depending on coating.
- Materials and mechanical properties
- Supported materials: steel and stainless steel.
- Steel nuts: property classes and quenching/tempering specified per ISO 898-2.
- Stainless-steel nuts: grades and property classes referenced to ISO 3506-2 (common grades A2, A4 and grades D4/D6 included).
- Product grades
- Product grade A for smaller sizes (generally D ≤ M16, with specific exceptions); grade B for larger sizes (D > M16), and Annex A clarifies grades for D < M5 and D > M39.
- Surface finish, coatings and inspection
- As-processed, electroplated, zinc-flake, hot-dip galvanized and other finishes as agreed; surface discontinuities and acceptability referenced to ISO 6157-2 and ISO 3269.
- Marking & labelling
- Product marking: per ISO 898-2 (steel) or ISO 3506-2 (stainless).
- Package labelling must include reference to ISO 4035, thread size, property class/grade, finish, manufacturer ID, lot number and quantity.
Applications and typical users
- Practical uses
- Jam nuts, thin-space fastening where reduced nut height is needed (electronics, sheet metal assemblies, stacked fastenings).
- Assemblies requiring international interchangeability and traceability of fasteners.
- Typical users
- Fastener manufacturers and suppliers
- Mechanical designers and OEMs specifying metric hardware
- Procurement and quality inspectors verifying compliance
- Test labs and conformity assessors
Related standards
Key normative references in ISO 4035 include:
- ISO 225 (dimension symbols), ISO 965-1 (metric thread tolerances)
- ISO 898-2 (mechanical properties of steel nuts)
- ISO 3506-2 (stainless-steel nut grades)
- ISO 4759-1 (product grade tolerances), ISO 6157-2 (surface discontinuities)
- ISO 3269 (acceptance inspection), ISO 8991 / ISO 8992 (designation and general requirements)
- Coating standards: ISO 4042, ISO 10683, ISO 10684
Example designation format (from the standard): Hexagon thin nut ISO 4035 – M12 – 05
Keywords: ISO 4035, hexagon thin nuts, thin nuts style 0, fasteners standard, metric nuts M1.6–M64, product grade A B, jam nut, stainless steel nuts.
Frequently Asked Questions
oSIST prEN ISO 4035:2022 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Fasteners - Hexagon thin nuts (style 0) (ISO/DIS 4035:2022)". This standard covers: Diese Internationale Norm legt Eigenschaften von flachen Sechskantmuttern (Typ 0) mit Grobgewinde mit Durchmessern von M1,6 bis M64, in Produktklasse A für Durchmesser ≤ M16 und Produktklasse B für Durchmesser > M16, fest. Flache Muttern, die als Kontermuttern eingesetzt werden, müssen zusammen mit einer normalen oder hohen Mutter montiert werden. WARNUNG — Flache Muttern (Typ 0) haben im Vergleich zu normalen oder hohen Muttern eine reduzierte Ladekapazität und bieten keinen Widerstand gegen das Abstreifen vom Gewinde (siehe ISO 898-2).
Diese Internationale Norm legt Eigenschaften von flachen Sechskantmuttern (Typ 0) mit Grobgewinde mit Durchmessern von M1,6 bis M64, in Produktklasse A für Durchmesser ≤ M16 und Produktklasse B für Durchmesser > M16, fest. Flache Muttern, die als Kontermuttern eingesetzt werden, müssen zusammen mit einer normalen oder hohen Mutter montiert werden. WARNUNG — Flache Muttern (Typ 0) haben im Vergleich zu normalen oder hohen Muttern eine reduzierte Ladekapazität und bieten keinen Widerstand gegen das Abstreifen vom Gewinde (siehe ISO 898-2).
oSIST prEN ISO 4035:2022 is classified under the following ICS (International Classification for Standards) categories: 21.060.20 - Nuts. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN ISO 4035:2022 has the following relationships with other standards: It is inter standard links to SIST EN ISO 4035:2013, SIST EN ISO 4035:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
oSIST prEN ISO 4035:2022 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-2022
Vezni elementi - Šestrobe nizke matice (tip 0) (ISO/DIS 4035:2022)
Fasteners - Hexagon thin nuts (style 0) (ISO/DIS 4035:2022)
Mechanische Verbindungselemente – Niedrige Sechskantmuttern (Typ 0) (ISO/DIS
4035:2022)
Fixations - Écrous bas hexagonaux (style 0) (ISO/DIS 4035:2022)
Ta slovenski standard je istoveten z: prEN ISO 4035
ICS:
21.060.20 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4035
ISO/TC 2/SC 12 Secretariat: DIN
Voting begins on: Voting terminates on:
2022-04-20 2022-07-13
Fasteners — Hexagon thin nuts (style 0)
Fixations — Écrous bas hexagonaux (style 0)
ICS: 21.060.20
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
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 4035:2022(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 2022
ISO/DIS 4035:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
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Published in Switzerland
ii
ISO/DIS 4035:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions .2
5 Requirements and reference International Standards . 3
6 Marking and labelling . 5
6.1 Marking on product . . 5
6.2 Labelling on package . 5
7 Designation . 5
Annex A (normative) Nuts with D < M5 and D > M39, not included in ISO 898-2 .6
Bibliography .10
iii
ISO/DIS 4035:2022(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.
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 fifth edition cancels and replaces the fourth edition (ISO 4035:2012).
The main changes compared to the previous edition are as follows:
— the use of thin nuts and a warning in relation to lower thread stripping resistance have been added
in scope;
— nuts with D < M5 and D > M39 (not included in ISO 898-2) have been dealt with in normative Annex A;
— M7 has been added;
— d for sizes d ≤ M5 has been changed from s – IT16 to s – IT15 in order to have a larger
w,min min min
bearing surface area and thus less contact pressure;
— d and d have been specified with two decimal places;
a,max w,min
— for steel nuts, quenching and tempering condition has been specified in accordance with ISO 898-2;
— for stainless-steel nuts, grades D4 and D6 and property classes 80 have been added;
— non-ferrous metal nuts have been cancelled (as a consequence of the cancellation of ISO 8839);
— specifications for marking and labelling have been added as Clause 6.
Any feedback or questions on this document should be directed to the user's national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
DRAFT INTERNATIONAL STANDARD ISO/DIS 4035:2022(E)
Fasteners — Hexagon thin nuts (style 0)
1 Scope
This document specifies the characteristics of hexagon thin nuts (style 0), in steel and stainless steel,
with metric coarse pitch thread M1,6 to M64, and with product grades A and B.
Thin nuts used as jam nuts are to be assembled together with a regular or high nut.
WARNING — Thin nuts (style 0) have a reduced loadability compared to regular nuts or high
nuts, and are not designed to provide resistance to thread stripping (see ISO 898-2).
If in certain cases other specifications are requested, stainless steel grades and property classes can be
selected from ISO 3506-2.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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 898-2, Fasteners — Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2:
Nuts with specified property classes
ISO 965-1, ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
ISO 1891-4, Fasteners — Vocabulary — Part 4: Control, inspection, delivery, acceptance and quality
ISO 3269, Fasteners — Acceptance inspection
ISO 3506-2, Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part 2:
Nuts with specified grades and property classes
ISO 4042, Fasteners — Electroplated coating systems
ISO 4759-1, Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C
ISO 6157-2, Fasteners — Surface discontinuities — Part 2: Nuts
ISO 8991, Designation system for fasteners
ISO 8992, Fasteners — General requirements for bolts, screws, studs and nuts
ISO 10683, Fasteners — Non-electrolytically applied zinc flake coating systems
ISO 10684, Fasteners — Hot dip galvanized coatings
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
ISO/DIS 4035:2022(E)
— IEC Electropedia: available at https:// www .electropedia .org/
4 Dimensions
Dimensions for nuts with sizes M5 to M39 shall be in accordance with Figure 1 and with Tables 1 and 2.
Dimensions for nuts with sizes D < M5 and D > M39 shall be in accordance with Annex A.
Symbols and descriptions of dimensions are defined in ISO 225.
Figure 1 — Nuts without washer-face
ISO/DIS 4035:2022(E)
Table 1 — Dimensions for nuts M5 to M18
Dimensions in millimetres
Thread, D M5 M6 (M7) M8 M10 M12 (M14) M16 (M18)
a
P 0,8 1 1 1,25 1,5 1,75 2 2 2,5
max. 5,75 6,75 7,75 8,75 10,80 12,96 15,12 17,28 19,44
d
a
min. 5,00 6,00 7,00 8,00 10,00 12,00 14,00 16,00 18,00
d min. 7,20 8,88 9,63 11,63 14,63 16,63 19,
...




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