SIST EN ISO 4014:2022
(Main)Fasteners - Hexagon head bolts - Product grades A and B (ISO 4014:2022)
Fasteners - Hexagon head bolts - Product grades A and B (ISO 4014:2022)
This document specifies the characteristics of hexagon head bolts, in steel and stainless steel, with
metric coarse pitch threads M1,6 to M64, and with product grades A and 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.
Mechanische Verbindungselemente - Sechskantschrauben mit Schaft - Produktklassen A und B (ISO 4014:2022)
Dieses Dokument legt Eigenschaften von Sechskantschrauben mit Schaft aus Stahl und nichtrostendem Stahl mit metrischen Regelgewinden M1,6 bis M64 und mit Produktklassen A und B fest.
Falls in bestimmten Fällen andere Festlegungen benötigt werden, können Festigkeitsklassen sowie Stahlsorten nichtrostender Stähle aus ISO 898 1 oder ISO 3506 1 und maßliche Alternativen aus ISO 888 oder ISO 4753 entnommen werden.
Fixations - Vis à tête hexagonale partiellement filetées - Grades A et B (ISO 4014:2022)
Le présent document spécifie les caractéristiques des vis à tête hexagonale partiellement filetées, en acier et en acier inoxydable, à filetage métrique à pas gros M1,6 à M64, et de grades A et B.
Si dans certains cas d’autres spécifications sont requises, les classes de qualité et les grades d’acier inoxydable peuvent être choisis dans l'ISO 898‑1 ou l'ISO 3506‑1, et les options dimensionnelles dans l'ISO 888 ou l'ISO 4753.
Vezni elementi - Vijaki s šestrobo glavo - Razreda izdelave A in B (ISO 4014:2022)
Ta dokument določa značilnosti vijakov s šestrobo glavo iz jekla in nerjavnega jekla, z grobim metričnim navojem velikosti M1,6 do M64 in razredoma izdelave A in B.
Če se v določenih primerih zahtevajo druge specifikacije, je razrede lastnosti in tipe nerjavnega jekla mogoče izbrati po standardih ISO 898-1 ali ISO 3506-1, dimenzijske možnosti pa po ISO 888 ali ISO 4753.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 4014:2022
01-september-2022
Nadomešča:
SIST EN ISO 4014:2011
Vezni elementi - Vijaki s šestrobo glavo - Razreda izdelave A in B (ISO 4014:2022)
Fasteners - Hexagon head bolts - Product grades A and B (ISO 4014:2022)
Mechanische Verbindungselemente - Sechskantschrauben mit Schaft - Produktklassen
A und B (ISO 4014:2022)
Fixations - Vis à tête hexagonale partiellement filetées - Grades A et B (ISO 4014:2022)
Ta slovenski standard je istoveten z: EN ISO 4014:2022
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
SIST EN ISO 4014:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 4014:2022
---------------------- Page: 2 ----------------------
SIST EN ISO 4014:2022
EN ISO 4014
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2022
EUROPÄISCHE NORM
ICS 21.060.10 Supersedes EN ISO 4014:2011
English Version
Fasteners - Hexagon head bolts - Product grades A and B
(ISO 4014:2022)
Fixations - Vis à tête hexagonale partiellement filetées - Mechanische Verbindungselemente -
Grades A et B (ISO 4014:2022) Sechskantschrauben mit Schaft - Produktklassen A und
B (ISO 4014:2022)
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 NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
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 4014:2022 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 4014:2022
EN ISO 4014:2022 (E)
Contents Page
European foreword . 3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 4014:2022
EN ISO 4014:2022 (E)
European foreword
This document (EN ISO 4014:2022) 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 ISO 4014:2011.
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 4014:2022 has been approved by CEN as EN ISO 4014:2022 without any modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 4014:2022
---------------------- Page: 6 ----------------------
SIST EN ISO 4014:2022
INTERNATIONAL ISO
STANDARD 4014
Fifth edition
2022-06
Fasteners — Hexagon head bolts —
Product grades A and B
Fixations — Vis à tête hexagonale partiellement filetées — Grades A
et B
Reference number
ISO 4014:2022(E)
© ISO 2022
---------------------- Page: 7 ----------------------
SIST EN ISO 4014:2022
ISO 4014:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© 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 2022 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 4014:2022
ISO 4014:2022(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 . 9
6 Marking and labelling .10
6.1 Marking on product . . 10
6.2 Labelling on package . 10
7 Designation .10
Annex A (normative) Dimensions for bolts M1,6 to M14 with product grade B .11
Bibliography .13
iii
© ISO 2022 – All rights reserved
---------------------- Page: 9 ----------------------
SIST EN ISO 4014:2022
ISO 4014:2022(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 fifth edition cancels and replaces the fourth edition (ISO 4014:2011), which has been technically
revised.
The main changes are as follows:
— tables for dimensions have been entirely restructured, so that the user can find the specified values
in a reliable manner (no risk of picking the wrong dimension), see Clause 4 and Annex A;
— M7 has 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;
— the rules for the shortest and greatest standard lengths have been added, and they have been
amended accordingly;
— for steel bolts, property classes 4.8 and 12.9/12.9 have been added;
— for stainless steel bolts, grades D4 and D6 and property class 80 have been added;
— property class 9.8 and 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
© ISO 2022 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 4014:2022
INTERNATIONAL STANDARD ISO 4014:2022(E)
Fasteners — Hexagon head bolts — Product grades A and B
1 Scope
This document specifies the characteristics of hexagon head bolts, in steel and stainless steel, with
metric coarse pitch threads M1,6 to M64, and with product grades A and 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.
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 6157-3, Fasteners — Surface discontinuities — Part 3: Bolts, screws and studs for special 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 and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
1
© ISO 2022 – All rights reserved
---------------------- Page: 11 ----------------------
SIST EN ISO 4014:2022
ISO 4014:2022(E)
— IEC Electropedia: available at https:// www .electropedia .org/
4 Dimensions
Dimensions shall be in accordance with Figures 1 and 2 and with Tables 1 to 6.
Symbols and descriptions of dimensions are defined in ISO 225.
a
In accordance with ISO 4753: chamfered end (CH), but for sizes ≤ M4 as-rolled end (RL) is also allowed.
b
Incomplete thread u ≤ 2P.
c
l = l − b and l = l − 5P.
g,max nom s,min g,max
d
Shortest standard length l determined with 5d for M5 to M8, 4,5d for M10, 4d for M12 to M22, 3,75d for M24
nom
to M60, and rounded (if necessary) to the nearest standard length; shortest standard length l = 220 mm for
nom
M64.
e
Greatest standard length l ≤ 10d or 500 mm, whichever is the shorter.
nom
Figure 1 — Hexagon head bolt
Dimensions in millimetres
a) Minimum underhead fillet b) Maximum underhead fillet
a
Reference datum for d .
w
Figure 2 — Head details and permissible shapes
2
© ISO 2022 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 4014:2022
ISO 4014:2022(E)
Table 1 — Dimensions for product grade A – M1,6 to M4
Dimensions in millimetres
Thread, d M1,6 M2 M2,5 M3 (M3,5) M4
a
P 0,35 0,4 0,45 0,5 0,6 0,7
b
b ref. 9 10 11 12 13 14
max. 0,25 0,25 0,25 0,40 0,40 0,40
c
min. 0,10 0,10 0,10 0,15 0,15 0,15
d max. 2,0 2,6 3,1 3,6 4,1 4,7
a
nom. = max. 1,60 2,00 2,50 3,00 3,50 4,00
d
s
min. 1,46 1,86 2,36 2,86 3,32 3,82
d min. 2,54 3,34 4,34 4,84 5,34 6,20
w
e min. 3,41 4,32 5,45 6,01 6,58 7,66
nom. 1,1 1,4 1,7 2 2,4 2,8
k max. 1,225 1,525 1,825 2,125 2,525 2,925
min. 0,975 1,275 1,575 1,875 2,275 2,675
k min. 0,68 0,89 1,10 1,31 1,59 1,87
w
l max. 0,6 0,8 1,0 1,0 1,0 1,2
f
r min. 0,10 0,10 0,10 0,10 0,10 0,20
nom. = max. 3,20 4,00 5,00 5,50 6,00 7,00
s
min. 3,02 3,82 4,82 5,32 5,82 6,78
l Range of standard lengths between the stepped bold lines
nom. min. max. l min. l max. l min. l max. l min. l max. l min. l max. l min. l max. l min. l max.
s g s g s g s g s g s g
12 11,65 12,35 1,25 3,0
Fully threaded screws
specified in ISO 4017
16 15,65 16,35 5,25 7,0 4,0 6,0 2,75 5,0
20 19,58 20,42 8,0 10,0 6,75 9,0 5,5 8,0 4,0 7,0
25 24,58 25,42 11,75 14,0 10,5 13,0 9,0 12,0 7,5 11,0
30 29,58 30,42 15,5 18,0 14,0 17,0 12,5 16,0
35 34,50 35,50 19,0 22,0 17,5 21,0
Product grade B
in Annex A
40 39,50 40,50 22,5 26,0
— — —
NOTE Size shown in brackets is a non-preferred dimension.
a
P is the pitch of the thread.
b
For l ≤ 125 mm.
nom
3
© ISO 2022 – All rights reserved
---------------------- Page: 13 ----------------------
SIST EN ISO 4014:2022
ISO 4014:2022(E)
Table 2 — Dimensions for product grade A – M5 to M12
Dimensions in millimetres
Thread, d M5 M6 (M7) M8 M10 M12
a
P 0,8 1 1 1,25 1,5 1,75
b
b ref. 16 18 20 22 26 30
max. 0,50 0,50 0,60 0,60 0,60 0,60
c
min. 0,15 0,15 0,15 0,15 0,15 0,15
d max. 5,7 6,8 7,8 9,2 11,2 13,7
a
nom. = max. 5,00 6,00 7,00 8,00 10,00 12,00
d
s
min. 4,82 5,82 6,78 7,78 9,78 11,73
d min. 7,20 8,88 9,63 11,63 14,63 16,63
w
e min. 8,79 11,05 12,12 14,38 17,77 20,03
nom. 3,5 4,0 4,8 5,3 6,4 7,5
k max. 3,65 4,15 4,95 5,45 6,58 7,68
min. 3,35 3,85 4,65 5,15 6,22 7,32
k min. 2,35 2,70 3,26 3,61 4,35 5,12
w
l max. 1,2 1,4 1,4 2,0 2,0 3,0
f
r min. 0,20 0,25 0,25 0,40 0,40 0,60
nom. = max. 8,00 10,00 11,00 13,00 16,00 18,00
s
min.
...
SLOVENSKI STANDARD
oSIST prEN ISO 4014:2020
01-september-2020
Vijaki s šestrobo glavo - Razreda izdelave A in B (ISO/DIS 4014:2020)
Hexagon head bolts - Product grades A and B (ISO/DIS 4014:2020)
Sechskantschrauben mit Schaft - Produktklassen A und B (ISO/DIS 4014:2020)
Vis à tête hexagonale partiellement filetée - Grades A et B (ISO/DIS 4014:2020)
Ta slovenski standard je istoveten z: prEN ISO 4014
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
oSIST prEN ISO 4014:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 4014:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 4014:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4014
ISO/TC 2/SC 11 Secretariat: DIN
Voting begins on: Voting terminates on:
2020-06-24 2020-09-16
Hexagon head bolts — Product grades A and B
Vis à tête hexagonale partiellement filetées — Grades A et B
ICS: 21.060.10
IMPORTANT — Please use this updated version dated 2020-05-04, and
discard any previous versions of this DIS.
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
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 4014:2020(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 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 4014:2020
ISO/DIS 4014:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 4014:2020
ISO/DIS 4014:2020 (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 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 the following
URL: 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.
This fifth edition cancels and replaces the fourth edition (ISO 4014:2011), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— M7 has been added;
— tables for dimensions have been entirely restructured, so that the user can find his way around on a
reliable manner (no risk of picking the wrong dimension);
— 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 less contact pressure);
— standard lengths have been corrected: addition of l = 60 mm for M6, 500 mm for M52, 240 mm
nom
for M64 and deletion of l = 110 mm for M30 and 440 mm for M42;
nom
— property class 9.8 and non-ferrous metal bolts have been deleted;
— property class 4.8 has been added for steel bolts, and property class 80 has been added for
stainless steel bolts;
— specifications for marking and labelling have been added as Clause 6.
© ISO 2019 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 4014:2020
ISO/DIS 4014:2020 (E)
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 © ISO 2020 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 4014:2020
ISO/DIS 4014:2020 (E)
Hexagon head bolts — Product grades A and B
1 Scope
This document specifies the characteristics of hexagon head bolts, in steel and stainless steel, with
metric coarse pitch threads M1,6 to M64, and with product grades A and B.
NOTE 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.
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 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 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 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 galvanised 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 http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
© ISO 2020 – All rights reserved 1
---------------------- Page: 7 ----------------------
oSIST prEN ISO 4014:2020
ISO/DIS 4014:2020 (E)
4 Dimensions
Dimensions shall be in accordance with Figures 1 and 2 and with Tables 1 to 6.
Symbols and descriptions of dimensions are defined in ISO 225.
Key
a
In accordance with ISO 4753: chamfered end (CH), but for sizes ≤ M4 as-rolled end (RL) is also allowed.
b
Incomplete thread u ≤ 2P.
c
l = l − b and l = l − 5P.
g,max nom s,min g,max
Figure 1 — Hexagon head bolt
Dimensions in millimetres
a) Minimum underhead fillet b) Maximum underhead fillet
Key
a
Reference datum for dw.
Figure 2 — Head details and permissible shapes
2 © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
oSIST prEN ISO 4014:2020
ISO/DIS 4014:2020 (E)
Table 1 — Dimensions for product grade A – M1,6 to M4
Dimensions in millimetres
Thread, d M1,6 M2 M2,5 M3 (M3,5) M4
a
0,35 0,4 0,45 0,5 0,6 0,7
P
b ref. 9 10 11 12 13 14
max. 0,25 0,25 0,25 0,40 0,40 0,40
c
min. 0,10 0,10 0,10 0,15 0,15 0,15
d max. 2,0 2,6 3,1 3,6 4,1 4,7
a
nom. = max. 1,60 2,00 2,50 3,00 3,50 4,00
d
s
min. 1,46 1,86 2,36 2,86 3,32 3,82
d
min. 2,54 3,34 4,34 4,84 5,34 6,20
w
e min. 3,41 4,32 5,45 6,01 6,58 7,66
nom. 1,1 1,4 1,7 2 2,4 2,8
k max. 1,225 1,525 1,825 2,125 2,525 2,925
min. 0,975 1,275 1,575 1,875 2,275 2,675
k min. 0,68 0,89 1,10 1,31 1,59 1,87
w
l
max. 0,6 0,8 1,0 1,0 1,0 1,2
f
r min. 0,10 0,10 0,10 0,10 0,10 0,20
nom. = max. 3,20 4,00 5,00 5,50 6,00 7,00
s
min. 3,02 3,82 4,82 5,32 5,82 6,78
l Range of standardized lengths between the stepped discontinuous lines
l min. l max. l min. l max. l min. l max. l min. l max. l min. l max. l min. l max.
nom. min. max.
s g s g s g s g s g s g
12 11,65 12,35 1,25 3,0
Fully threaded screws
specified in ISO 4017
16 15,65 16,35 5,25 7,0 4,0 6,0 2,75 5,0
20 19,58 20,42 8,0 10,0 6,75 9,0 5,5 8,0 4,0 7,0
25 24,58 25,42 11,75 14,0 10,5 13,0 9,0 12,0 7,5 11,0
30 29,58 30,42 15,5 18,0 14,0 17,0 12,5 16,0
Lengths to be agreed
35 34,50 35,50 between the purchaser 19,0 22,0 17,5 21,0
and the manufacturer
40 39,50 40,50 22,5 26,0
NOTE Size shown in brackets is a non-preferred diameter.
a
P is the pitch of the thread.
© ISO 2020 – All rights reserved 3
---------------------- Page: 9 ----------------------
oSIST prEN ISO 4014:2020
ISO/DIS 4014:2020 (E)
Table 2 — Dimensions for product grade A – M5 to M12
Dimensions in millimetres
Thread, d M5 M6 (M7) M8 M10 M12
a
P 0,8 1 1 1,25 1,5 1,75
b
b ref. 16 18 20 22 26 30
max. 0,50 0,50 0,60 0,60 0,60 0,60
c
min. 0,15 0,15 0,15 0,15 0,15 0,15
d
max. 5,7 6,8 7,8 9,2 11,2 13,7
a
nom. = max. 5,00 6,00 7,00 8,00 10,00 12,00
d
s
min. 4,82 5,82 6,78 7,78 9,78 11,73
d min. 7,20 8,88 9,63 11,63 14,63 16,63
w
e min. 8,79 11,05 12,12 14,38 17,77 20,03
nom. 3,5 4,0 4,8 5,3 6,4 7,5
k max. 3,65 4,15 4,95 5,45 6,58 7,68
min. 3,35 3,85 4,65 5,15 6,22 7,32
k
min. 2,35 2,70 3,26 3,61 4,35 5,12
w
l max. 1,2 1,4 1,4 2,0 2,0 3,0
f
r min. 0,20 0,25 0,25 0,40 0,40 0,60
nom. = max. 8,00 10,00 11,00 13,00 16,00 18,00
s
min. 7,78 9,78 10,73 12,73 15,73 17,73
l Range of standardized lengths between the stepped discontinuous lines
l min. l max. l min. l max. l min. l max. l min. l max. l min. l max. l min. l max.
nom. min. max.
s g s g s g s g s g s g
25 24,58 25,42 5,0 9,0
30 29,58 30,42 10,0 14,0 7,0 12,0
Fully threaded screws
specified in ISO 4017
35 34,5 35,5 15,0 19,0 12,0 17,0 10,0 15,0
40 39,5 40,5 20,0 24,0 17,0 22,0 15,0 20,0 11,75 18,0
45 44,5 45,5 25,0 29,0 22,0 27,0 20,0 25,0 16,75 23,0 11,5 19,0
50 49,5 50,5 30,0 34,0 27,0 32,0 25,0 30,0 21,75 28,0 16,5 24,0 11,25 20,0
55 54,4 55,6 32,0 37,0 30,0 35,0 26,75 33,0 21,5 29,0 16,25 25,0
60 59,4 60,6 37,0 42,0 35,0 40,0 31,75 38,0 26,5 34,0 21,25 30,0
65 64,4 65,6 40,0 45,0 36,75 43,0 31,5 39,0 26,25 35,0
70 69,4 70,6 45,0 50,0 41,75 48,0 36,5 44,0 31,25 40,0
80 79,4 80,6 51,75 58,0 46,5 54,0 41,25 50,0
90 89,3 90,7 56,5 64,0 51,25 60,0
Lengths to be agreed
100 99,3 100,7 66,5 74,0 61,25 70,0
b
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.