EN ISO 4015:2022

SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN 24015:1996
Vezni elementi - Vijaki s šestrobo glavo z zmanjšanim steblom (premer stebla ≈
premer navoja) - Razred izdelave B (ISO 4015:2022)
Fasteners - Hexagon head bolts with reduced shank (shank diameter ≈ pitch diameter) -
Product grade B (ISO 4015:2022)
Sechskantschrauben mit Schaft, Dünnschaft (Schaftdurchmesser ≈
Flankendurchmesser) - Produktklasse B (ISO 4015:2022)
Fixations - Vis à tête hexagonale partiellement filetées à tige réduite (diamètre de tige ≈
diamètre sur flanc de filet) - Grade B (ISO 4015:2022)
Ta slovenski standard je istoveten z: EN ISO 4015:2022
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4015
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2022
EUROPÄISCHE NORM
ICS 21.060.10 Supersedes EN 24015:1991
English Version
Fasteners - Hexagon head bolts with reduced shank (shank
diameter ≈ pitch diameter) - Product grade B (ISO
4015:2022)
Fixations - Vis à tête hexagonale partiellement filetées Sechskantschrauben mit Schaft, Dünnschaft
à tige réduite (diamètre de tige ≈ diamètre sur flanc de (Schaftdurchmesser ≈ Flankendurchmesser) -
filet) - Grade B (ISO 4015:2022) Produktklasse B (ISO 4015:2022)
This European Standard was approved by CEN on 25 September 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N

EUROPÄISCHES KOMITEE FÜR NORMUN G

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4015:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 4015:2022) has been prepared by Technical Committee ISO/TC 2 "Fasteners" in
collaboration with Technical Committee CEN/TC 185 “Fasteners” the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2023, and conflicting national standards shall
be withdrawn at the latest by January 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 24015:1991.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 4015:2022 has been approved by CEN as EN ISO 4015:2022 without any modification.

INTERNATIONAL ISO
STANDARD 4015
Second edition
2022-06
Fasteners — Hexagon head bolts with
reduced shank (shank diameter ≈
pitch diameter) — Product grade B
Fixations — Vis à tête hexagonale partiellement filetées à tige réduite
(diamètre de tige ≈ diamètre sur flanc de filet) — Grade B
Reference number
ISO 4015:2022(E)
ISO 4015:2022(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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 4015:2022(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 . 5
6 Marking and labelling . 6
6.1 Marking on product . . 6
6.2 Labelling on package . 6
7 Designation . 6
Bibliography . 7
iii
ISO 4015:2022(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 of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 11,
Fasteners with metric external thread, in collaboration with the European Committee for Standardization
(CEN) Technical Committee CEN/TC 185, Fasteners, in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 4015:1979), which has been technically
revised.
The main changes are as follows:
— the indentation on the head and the washer-face under the head have been left to the choice of the
manufacturer, however limits for dimensions have been added;
— tables for dimensions have been restructured;
— M3,5, M7 and M18 have been added;
— d has been changed for sizes d ≤ M5 from s − IT16 to s − IT15 in order to have a larger
w,min min min
bearing surface area and thus less contact pressure, and its values for d > M5 have been recalculated
in accordance with ISO 4759-1 without rounding off;
— values for k have been recalculated in accordance with ISO 4759-1 without rounding off;
w,min
— value for e has been corrected for M3;
min
— addition of property class 6.8 for steel bolts and property class 50 for stainless steel bolts;
— non-ferrous metal bolts have been deleted;
— 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
INTERNATIONAL STANDARD ISO 4015:2022(E)
Fasteners — Hexagon head bolts with reduced shank
(shank diameter ≈ pitch diameter) — Product grade B
1 Scope
This document specifies the characteristics of hexagon head bolts with reduced shank (shank diameter
approximately equal to pitch diameter), in steel and stainless steel, with metric coarse pitch threads
M3 to M20, and with product grade B.
If in certain cases other specifications are requested, property classes and stainless steel grades can be
selected from ISO 898-1 or ISO 3506-1, and dimensional options from ISO 888 or ISO 4753.
NOTE For hexagon head bolts with full shank, see ISO 4014.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 888, Fasteners — Bolts, screws and studs — Nominal lengths and thread lengths
ISO 898-1, 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
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 3506-1, Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part 1:
Bolts, screws and studs with specified grades and property classes
ISO 4042, Fasteners — Electroplated coating systems
ISO 4753, Fasteners — Ends of parts with external ISO metric thread
ISO 4759-1, Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C
ISO 6157-1, Fasteners — Surface discontinuities — Part 1: Bolts, screws and studs for general requirements
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 4015:2022(E)
ISO and IEC maintain terminology databases for use in sta
...