Iso 4017 2022
Iso 4017 2022
Iso 4017 2022
STANDARD 4017
Sixth edition
2022-06
Reference number
ISO 4017:2022(E)
© ISO 2022
ISO 4017:2022(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............................................................................................... 7
6 Marking and labelling..................................................................................................................................................................................... 8
6.1 Marking on product............................................................................................................................................................................. 8
6.2 Labelling on package.......................................................................................................................................................................... 8
7 Designation................................................................................................................................................................................................................. 8
Annex A (normative) Dimensions for screws M1,6 to M14 with product grade B................................................ 9
Bibliography.............................................................................................................................................................................................................................. 11
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
iTeh STANDARD PREVIEW
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
(standards.iteh.ai)
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, in collaboration with the European Committee for Standardization
(CEN) Technical Committee CEN/TC 185, Fasteners, ISO 4017:2022
in accordance with the Agreement on technical
https://standards.iteh.ai/catalog/standards/sist/9a0b276e-2cb8-4d6e-bc7c-
cooperation between ISO and CEN (Vienna Agreement).
b54b5318249f/iso-4017-2022
This sixth edition cancels and replaces the fifth edition (ISO 4017:2014), 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;
— dw,min has been changed for sizes d ≤ M5 from smin – IT16 to smin – IT15, in order to have a larger
bearing surface area and thus less contact pressure;
— greatest standard lengths (accidentally removed in the fifth edition) have been restored, rules for
the shortest and greatest standard lengths have been added, and amended accordingly;
— for steel screws, property classes 4.8 and 12.9/12.9 have been added;
— for stainless steel screws, grades D4 and D6 and property class 80 have been added;
— property class 9.8 and non-ferrous metal screws 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.
1 Scope
This document specifies the characteristics of hexagon head screws, 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 and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://w ww.iso.org/obp
— IEC Electropedia: available at https://w ww.electropedia.org/
4 Dimensions
Dimensions shall be in accordance with Figures 1 and 2 and with Tables 1 to 4.
Symbols and descriptions of dimensions are defined in ISO 225.
Dimensions in millimetres
3 2,80 3,20
4 3,76 4,24 (standards.iteh.ai) Screws with
5 4,76 5,24 too short lengths
6 5,76 6,24 ISO 4017:2022
8 https://standards.iteh.ai/catalog/standards/sist/9a0b276e-2cb8-4d6e-bc7c-
7,71 8,29
10 9,71 10,29 b54b5318249f/iso-4017-2022
12 11,65 12,35
16 15,65 16,35
20 19,58 20,42
25 24,58 25,42
30 29,58 30,42
35 34,5 35,5
40 39,5 40,5
45 44,5 45,5
50 49,5 50,5
55 54,4 55,6 Product grade B
60 59,4 60,6 in Annex A
65 64,4 65,6
70 69,4 70,6
— — —
NOTE Sizes shown in brackets are non-preferred dimensions.
a P is the pitch of the thread.
b amax = 3P and amin = 1P.
16 15,65 16,35
20 19,58 20,42 (standards.iteh.ai) Screws with
25 24,58 25,42 too short lengths
30 29,58 30,42 ISO 4017:2022
35 34,5 https://standards.iteh.ai/catalog/standards/sist/9a0b276e-2cb8-4d6e-bc7c-
35,5
40 39,5 40,5 b54b5318249f/iso-4017-2022
45 44,5 45,5
50 49,5 50,5
55 54,4 55,6
60 59,4 60,6
65 64,4 65,6
70 69,4 70,6
80 79,4 80,6
90 89,3 90,7
100 99,3 100,7
110 109,3 110,7
120 119,3 120,7
130 129,2 130,8
140 139,2 140,8
150 149,2 150,8 Product grade B in Annex A
> 150 Product grade B in Table 3
NOTE Sizes shown in brackets are non-preferred dimensions.
a P is the pitch of the thread.
b amax = 3P and amin = 1P.
55 53,5 56,5
60 58,5 61,5 (standards.iteh.ai) too
Screws with
short lengths
65 63,5 66,5
70 68,5 71,5 ISO 4017:2022
80 https://standards.iteh.ai/catalog/standards/sist/9a0b276e-2cb8-4d6e-bc7c-
78,5 81,5
90 88,25 91,75 b54b5318249f/iso-4017-2022
Product grade A
100 98,25 101,75 in Table 2
110 108,25 111,75
120 118,25 121,75
130 128,0 132,0
140 138,0 142,0
150 148,0 152,0
160 158,0 162,0
180 178,0 182,0
200 197,7 202,3
> 200 Length by agreement in Bolts specified in ISO 4014, or screws with length by
accordance with ISO 888 agreement in accordance with ISO 888
NOTE Sizes shown in brackets are non-preferred dimensions.
a P is the pitch of the thread.
b amax = 3P and amin = 1P.
80 78,5 81,5
90 88,25 91,75 (standards.iteh.ai) Screws with
100 98,25 101,75 too short lengths
110 108,25 111,75 ISO 4017:2022
120 https://standards.iteh.ai/catalog/standards/sist/9a0b276e-2cb8-4d6e-bc7c-
118,25 121,75
130 128,0 132,0 b54b5318249f/iso-4017-2022
140 138,0 142,0
150 148,0 152,0
160 158,0 162,0
180 178,0 182,0
200 197,7 202,3
> 200 Bolts specified in ISO 4014, or screws with length
by agreement in accordance with ISO 888
NOTE Sizes shown in brackets are non-preferred dimensions.
a P is the pitch of the thread.
b amax = 3P and amin = 1P.