Fasteners - Hexagon head screws, with metric fine pitch thread - Product grades A and B (ISO/FDIS 8676:2021)

Sechskantschrauben mit Gewinde bis Kopf und metrischem Feingewinde - Produktklassen A und B (ISO/FDIS 8676:2021)

Dieses Dokument legt Eigenschaften für Sechskantschrauben mit Gewinde bis Kopf aus Stahl und nichtrostendem Stahl, mit metrischem Feingewinde M8×1 bis M64×4, in den 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 entièrement filetées, à pas fin - Grades A et B (ISO/FDIS 8676:2021)

Vezni elementi - Vijaki s šestrobo glavo z navojem do glave in metrskim drobnim navojem - Razreda izdelave A in B (ISO/FDIS 8676:2021)

General Information

Status
Not Published
Public Enquiry End Date
16-Sep-2020
Technical Committee
Current Stage
5020 - Formal vote (FV) (Adopted Project)
Start Date
21-Jul-2021
Due Date
08-Sep-2021

RELATIONS

Buy Standard

Draft
oSIST prEN ISO 8676:2020
English language
14 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO 8676:2020
01-september-2020
Vijaki s šestrobo glavo z navojem do glave in metrskim drobnim navojem -
Razreda izdelave A in B (ISO/DIS 8676:2020)

Hexagon head screws with metric fine pitch thread - Product grades A and B (ISO/DIS

8676:2020)
Sechskantschrauben mit Gewinde bis Kopf und metrischem Feingewinde -
Produktklassen A und B (ISO/DIS 8676:2020)

Vis à tête hexagonale à filetage métrique à pas fin entièrement filetées - Grades A et B

(ISO/DIS 8676:2020)
Ta slovenski standard je istoveten z: prEN ISO 8676
ICS:
21.040.10 Metrski navoji Metric screw threads
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
oSIST prEN ISO 8676:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 8676:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 8676:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 8676
ISO/TC 2/SC 11 Secretariat: DIN
Voting begins on: Voting terminates on:
2020-06-25 2020-09-17
Hexagon head screws with metric fine pitch thread —
Product grades A and B

Vis à tête hexagonale à filetage métrique à pas fin entièrement filetées — Grades A et B

ICS: 21.060.10
IMPORTANT — Please use this updated version dated 2020-05-05,
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 8676:2020(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 8676:2020
ISO/DIS 8676:2020(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 8676:2020
ISO/DIS 8676:2020 (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 and by Technical Committee CEN/TC 185, Fasteners in

collaboration.

This fourth edition cancels and replaces the third edition (ISO 8676:2011), which has been technically

revised.
The main changes compared to the previous edition are as follows:

— 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);

— standard smallest lengths have been corrected as for the other hexagon head screw standards:

erroneous values for M22×2, M30×2 and M36 of l = 40 mm have been changed to 50 mm, 60 mm

nom

and 70 mm respectively; l = 30 mm has been added for M16×1,5 as well as 80 mm for M42×3

nom
and 110 mm for M56×4;

— greatest lengths l have been limited to 200 mm, longer lengths are to be agreed between the

nom
purchaser and the manufacturer;

— standard greatest lengths (accidentally removed in the third edition for non-preferred diameters

M18 and above) have been restored (greatest lengths l = 10d or 200 mm whichever is the

nom
shorter as for the other hexagon head screw standards);

— property class 12.9/12.9 has been added for steel and property class 80 has been added for

stainless steel;
© ISO 2020 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 8676:2020
ISO/DIS 8676:2020 (E)
— 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 2020 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 8676:2020
ISO/DIS 8676:2020 (E)
Hexagon head screws with metric fine pitch thread — Product
grades A and B
1 Scope

This document specifies the characteristics of hexagon head screws, in steel and stainless steel, with

metric fine pitch threads M8×1 to M64×4, 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, 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 6157-3, Fasteners — Surface discontinuities — Part 3: Bolts, screws and studs for special

requirements
ISO 8992, Fasteners — General requirements for bolts, screws, studs and nuts
ISO 10683, Fasteners — Non-electrolytically applied zinc flake coating systems
© ISO 2020 – All rights reserved 5
---------------------- Page: 7 ----------------------
oSIST prEN ISO 8676:2020
ISO/DIS 8676:2020 (E)
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/
4 Dimensions
Dimensions shall be in accordance with Figures 1 and 2 and with Tables 1 to 5.
Symbols and descriptions of dimensions are defined in ISO 225.
Key
Chamfered end (CH) in accordance with ISO 4753.

incomplete thread u ≤ 2P, where P is the fine pitch thread specified in Tables 1 to 5.

Figure 1 — Hexagon head screw
Dimensions in millimetres
Key
reference datum for d .
d ≈ pitch diameter.
Figure 2 —Head details and permissible shapes
6 © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
oSIST prEN ISO 8676:2020
ISO/DIS 8676:2020 (E)
Table 1 — Product grade A – M8×1 to M16×1,5
Dimensions in millimetres
Thread, d×P M8×1 M10×1,25 (M10×1) M12×1,5 (M12×1,25) (M14×1,5) M16×1,5
max. 3,00 3,75 3,00 4,50 3,75 4,50 4,50
min. 1,00 1,25 1,00 1,50 1,25 1,50 1,50
max. 0,60 0,60 0,60 0,60 0,60 0,60 0,80
min. 0,15 0,15 0,15 0,15 0,15 0,15 0,20
max. 9,2 11,2 11,2 13,7 13,7 15,7 17,7
d min. 11,63 14,63 14,63 16,63 16,63 19,64 22,49
e min. 14,38 17,77 17,77 20,03 20,03 23,36 26,75
nom. 5,3 6,4 6,4 7,5 7,5 8,8 10
k max. 5,45 6,58 6,58 7,68 7,68 8,98 10,18
min. 5,15 6,22 6,22 7,32 7,32 8,62 9,82
min. 3,61 4,35 4,35 5,12 5,12 6,03 6,87
r min. 0,4 0,4
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.