kSIST FprEN ISO 4014:2021

Fasteners - Hexagon head bolts - Product grades A and B (ISO/FDIS 4014:2021)

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.

Sechskantschrauben mit Schaft - Produktklassen A und B (ISO/FDIS 4014:2021)

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.
ANMERKUNG Falls in bestimmten Fällen andere Festlegungen benötigt werden, können Festigkeitsklassen und Stahlsorten nichtrostender Stähle aus ISO 898 1 oder ISO 3506 1 und Maßangaben aus ISO 888 oder ISO 4753 entnommen werden.

Fixations - Vis à tête hexagonale partiellement filetées - Grades A et B (ISO/FDIS 4014:2021)

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/FDIS 4014:2021)

General Information

• Status: Not Published
• Public Enquiry End Date: 15-Sep-2020
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: ISEL - Mechanical elements
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 27-Jul-2022
• Due Date: 01-Oct-2022
• Ref Project: EN ISO 4014:2022 - Fasteners - Hexagon head bolts - Product grades A and B (ISO 4014:2022)

RELATIONS

• Revised: SIST EN ISO 4014:2011 - Hexagon head bolts - Product grades A and B (ISO 4014:2011)
• Effective Date: 09-Nov-2016
• Replaces: SIST EN ISO 4014:2011 - Hexagon head bolts - Product grades A and B (ISO 4014:2011)
• Effective Date: 27-Jul-2022

Standards Content (sample)

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.

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oSIST prEN ISO 4014:2020
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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
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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
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Published in Switzerland
ii © ISO 2020 – All rights reserved
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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
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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
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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
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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

In accordance with ISO 4753: chamfered end (CH), but for sizes ≤ M4 as-rolled end (RL) is also allowed.

Incomplete thread u ≤ 2P.
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
Reference datum for dw.
Figure 2 — Head details and permissible shapes
2 © ISO 2020 – All rights reserved
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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
0,35 0,4 0,45 0,5 0,6 0,7
b ref. 9 10 11 12 13 14
max. 0,25 0,25 0,25 0,40 0,40 0,40
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
nom. = max. 1,60 2,00 2,50 3,00 3,50 4,00
min. 1,46 1,86 2,36 2,86 3,32 3,82
min. 2,54 3,34 4,34 4,84 5,34 6,20
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
max. 0,6 0,8 1,0 1,0 1,0 1,2
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
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.
P is the pitch of the thread.
© ISO 2020 – All rights reserved 3
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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
P 0,8 1 1 1,25 1,5 1,75
b ref. 16 18 20 22 26 30
max. 0,50 0,50 0,60 0,60 0,60 0,60
min. 0,15 0,15 0,15 0,15 0,15 0,15
max. 5,7 6,8 7,8 9,2 11,2 13,7
nom. = max. 5,00 6,00 7,00 8,00 10,00 12,00
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
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
min. 2,35 2,70 3,26 3,61 4,35 5,12
l max. 1,2 1,4 1,4 2,0 2,0 3,0
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
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
...