Technical drawings - Screw threads and threaded parts - Part 1: General conventions

Specifies methods for representation in general: detailed representation, conventional representation, assembled threaded parts, designation and dimensioning, indication of direction of lead.

Dessins techniques — Filetages et pièces filetées — Partie 1: Conventions générales

La présente partie de l'ISO 6410 prescrit les méthodes de représentation des filetages et des pièces filetées dans les dessins techniques.

Tehnične risbe - Vijačni navoji in navojni deli - 1. del: Osnovni dogovori

General Information

Status
Published
Publication Date
05-May-1993
Current Stage
9093 - International Standard confirmed
Start Date
10-Jun-2024
Completion Date
13-Dec-2025

Relations

Effective Date
15-Apr-2008

Overview

ISO 6410-1:1993 - Technical drawings - Screw threads and threaded parts - Part 1: General conventions specifies standardized methods for representing screw threads and threaded parts on technical drawings. It defines both detailed and conventional graphical representations, rules for showing threads in views and sections, how to indicate assembled threaded parts, and the conventions for designation and dimensioning (including direction of lead). The part complements ISO 6410 series (Parts 2 and 3) and links to general drawing standards such as ISO 128 and ISO 129.

Key topics and requirements

  • Representation methods
    • Detailed vs. conventional (simplified) representation of threads in side views, sections and end views.
    • Prefer representing helices as straight lines in side views when possible.
  • Line types and spacing
    • Crests of visible threads by a continuous thick line; roots by continuous thin line.
    • Minimum spacing between crest and root lines: not less than twice the thickness of the thick line or 0.7 mm, whichever is larger. (Notes give CAD guidance: e.g., 1.5 mm often acceptable for d > 8 mm.)
  • End and hidden views
    • End views: thread roots shown as a portion of a circle (approx. 3/4 circumference) in thin line.
    • Hidden threads: crests and roots shown with dashed thin lines.
  • Hatching and sections
    • Hatching of sectioned threaded parts extends to crest-defining line; inclined thin continuous lines may be used where functionally necessary.
  • Limits, run-outs and assemblies
    • Show the limit of length of full-depth thread (visible by continuous thick line; hidden by dashed line).
    • Thread run-outs may be omitted where possible.
    • In assemblies, external threads are shown covering internal threads and are not hidden.
  • Designation and dimensioning
    • Thread designation includes type (symbol), nominal diameter, lead/pitch, direction of lead, tolerance class, engagement (S/L/N) and number of starts.
    • Nominal diameter refers to the crest for external threads and to the root for internal threads.
    • Thread length normally refers to full-depth length; blind hole depth may be omitted or shown as 1.25 × thread length when unspecified.
    • Left‑hand threads must be marked (LH); RH may be marked if necessary.

Applications and users

  • Practical for: mechanical engineers, design drafters, CAD technicians, manufacturing engineers, shop floor personnel, quality inspectors and technical documentation authors.
  • Use cases: preparing manufacturing drawings, assembly documentation, procurement specifications for fasteners, CAD drawing standards, and inspection/QA procedures involving threaded parts and fasteners.

Related standards

  • ISO 6410-2 (Screw thread inserts), ISO 6410-3 (Simplified representation)
  • ISO 128 (Technical drawings - general presentation), ISO 129 (Dimensioning), ISO 225 (Fastener symbols/dimensions), ISO 4753 (Ends of parts), ISO 261/262/965 (metric thread series and tolerances)

Keywords: ISO 6410-1, screw threads, threaded parts, technical drawings, thread representation, thread designation, dimensioning, lead direction, CAD drafting, fastener documentation.

Standard

ISO 6410-1:1993 - Technical drawings — Screw threads and threaded parts — Part 1: General conventions Released:6. 05. 1993

English language
7 pages
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Standard

ISO 6410-1:1993 - Dessins techniques — Filetages et pièces filetées — Partie 1: Conventions générales Released:6. 05. 1993

French language
7 pages
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Frequently Asked Questions

ISO 6410-1:1993 is a standard published by the International Organization for Standardization (ISO). Its full title is "Technical drawings - Screw threads and threaded parts - Part 1: General conventions". This standard covers: Specifies methods for representation in general: detailed representation, conventional representation, assembled threaded parts, designation and dimensioning, indication of direction of lead.

Specifies methods for representation in general: detailed representation, conventional representation, assembled threaded parts, designation and dimensioning, indication of direction of lead.

ISO 6410-1:1993 is classified under the following ICS (International Classification for Standards) categories: 01.100.20 - Mechanical engineering drawings; 21.040.01 - Screw threads in general. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 6410-1:1993 has the following relationships with other standards: It is inter standard links to ISO 6410:1981. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase ISO 6410-1:1993 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-junij-1995
7HKQLþQHULVEH9LMDþQLQDYRMLLQQDYRMQLGHOLGHO2VQRYQLGRJRYRUL
Technical drawings -- Screw threads and threaded parts -- Part 1: General conventions
Dessins techniques -- Filetages et pièces filetées -- Partie 1: Conventions générales
Ta slovenski standard je istoveten z: ISO 6410-1:1993
ICS:
01.100.20 Konstrukcijske risbe Mechanical engineering
drawings
21.040.01 Navoji na splošno Screw threads in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ISO
INTERNATIONAL
STANDARD
641 O-1
First edi tion
1993005- 15
Technical drawings - Screw threads and
threaded Parts -
Part 1:
General conventions
Dessins techniques - Filetages et pikes filetees -
Partie 1: Conven tions g&d-ales
Reference number
ISO 6410=1:1993(E)
ISO 6410+1993(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. Esch 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, govern-
mental 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.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an Interna-
tional Standard requires approval by at least 75 % of the member bodies
casting a vote.
International Standard ISO 6410-1 was prepared by Technical Committee
ISOITC 10, Technical drawings, product definition and related documen-
tation, Sub-(Zornmittee SC 6, Mechanical engineering documentation.
This first edition of ISO 6410-1 cancels and replaces ISO 6410:1981, of
which it constitutes a technical revision.
ISO 6410 consists of the following Parts, under the general title Technical
dra wings - Screw threads and threaded park:
- Part 1: Genera/ conventions
- Part 2: Screw thread inserfs
- Part 3: Simplified representation
Annex A of this part of ISO 6410 is for information only.
0 ISO 1993
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronie or mechanical, including photocopying and microfilm, without
permisslon in writing from the publisher.
for Standardization
International Organization
Case Postale 56 l CH-121 1 Geneve 20 l Switzer
Printed in Switzerland
ii
ISO 6410=1:1993(E)
lntroduction
ISO 6410 has been devised to provide a universal means of communi-
cation among the various interests involved in the design, manufacture
and installation of fasteners.
Requirements within industries vary considerably; in recognition of this
fact, ISO 6410 is presented in three park (see foreword).

ISO 641091:1993(E)
INTERNATIONAL STANDARD
Technical drawings - Screw threads and threaded park -
Part 1:
General conventions
3 Representation
1 Scope
This part of ISO 6410 specifies methods for rep-
resenting screw threads and threaded park on
technical drawings.
3.1 Detailed representation of threads
2 Normative references
In certain types of technical product documentation
The following Standards contain provisions which,
(e.g. publications, user manuals, etc.) the detailed
through reference in this text, constitute provisions
representation of a thread either in a side view or in
of this part of ISO 6410. At the time of publication,
a section (see figures 1 to 3 ) may be needed to il-
the editions indicated were valid. All Standards are lustrate Single or assembled park. Neither pitch nor
subject to revision, and Parties to agreements based Profile of the threads need usually be drawn exactly
on this patt of ISO 6410 are encouraged to investi- to scale.
gate the possibility of applying the most recent edi-
In technical drawings, the detailed representation
tions of the Standards indicated below. Members of
IEC and ISO maintain registers of currently valid of threads (see figures 1 to 3) should only be used
International Standards. if absolutely necessary and whenever possible the
helix should be represented by straight lines (see
ISO 128:1982, Technical drawings - General princi- figure 2).
ples of presen tation.
ISO 129:1985, Technical drawings - Dimensioning -
General principles, definitions, methods of execution
and special indica tions.
ISO 225:1983, Fasteners - Belts, screws, studs and
- Symbols and designations of dimensions.
nuts
- Ends of Parts with ex-
ISO 4753: 1983, Fasteners
L External thread L Internal thread
ternal metric ISO thread.
Figure 1
ISO 6410,3:1993, Technical drawings - Screw
threads and threaded Parts - Part 3: Simpliiied rep-
resentation.
ISO 6410~1:1993(E)
The space between the lines representing the crest
and root ofthe thread should approximate as closely
as possible the depth of the thread, but, in all cases,
this spacing shall be not less than
- twice the thickness of the thick line, or
- 0,7 mm,
whichever is the larger.
NOTE 1 In certain cases, for example computer-aided
draughting,
Figure 2
-
a distance of l,5 mm for threads of nominal diameter
d>8mm is generali y acceptable;
-
a simplified representation is recommended for
threads of nominal diameter d < 6 mm, see
ISO 641 O-3.
3.2.2 End view of screw threads
On an end view of a screw thread, the thread roots
shall be represented by a Portion of a circle, drawn
with a continuous thin line (type B, ISO 128) approx-
imately equal to three-quarters of the circumference
(see figures 4 and 5), preferably open in the right-
hand upper quadrant. The thick line representing the
chamfer circle is generally omitted on the end view
Figure 3
(see figures 4 and 5).
NOTE 2 The Portion of the circle may also have any
other Position relative to the i
...


ISO
INTERNATIONAL
STANDARD
641 O-1
First edi tion
1993005- 15
Technical drawings - Screw threads and
threaded Parts -
Part 1:
General conventions
Dessins techniques - Filetages et pikes filetees -
Partie 1: Conven tions g&d-ales
Reference number
ISO 6410=1:1993(E)
ISO 6410+1993(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. Esch 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, govern-
mental 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.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an Interna-
tional Standard requires approval by at least 75 % of the member bodies
casting a vote.
International Standard ISO 6410-1 was prepared by Technical Committee
ISOITC 10, Technical drawings, product definition and related documen-
tation, Sub-(Zornmittee SC 6, Mechanical engineering documentation.
This first edition of ISO 6410-1 cancels and replaces ISO 6410:1981, of
which it constitutes a technical revision.
ISO 6410 consists of the following Parts, under the general title Technical
dra wings - Screw threads and threaded park:
- Part 1: Genera/ conventions
- Part 2: Screw thread inserfs
- Part 3: Simplified representation
Annex A of this part of ISO 6410 is for information only.
0 ISO 1993
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronie or mechanical, including photocopying and microfilm, without
permisslon in writing from the publisher.
for Standardization
International Organization
Case Postale 56 l CH-121 1 Geneve 20 l Switzer
Printed in Switzerland
ii
ISO 6410=1:1993(E)
lntroduction
ISO 6410 has been devised to provide a universal means of communi-
cation among the various interests involved in the design, manufacture
and installation of fasteners.
Requirements within industries vary considerably; in recognition of this
fact, ISO 6410 is presented in three park (see foreword).

ISO 641091:1993(E)
INTERNATIONAL STANDARD
Technical drawings - Screw threads and threaded park -
Part 1:
General conventions
3 Representation
1 Scope
This part of ISO 6410 specifies methods for rep-
resenting screw threads and threaded park on
technical drawings.
3.1 Detailed representation of threads
2 Normative references
In certain types of technical product documentation
The following Standards contain provisions which,
(e.g. publications, user manuals, etc.) the detailed
through reference in this text, constitute provisions
representation of a thread either in a side view or in
of this part of ISO 6410. At the time of publication,
a section (see figures 1 to 3 ) may be needed to il-
the editions indicated were valid. All Standards are lustrate Single or assembled park. Neither pitch nor
subject to revision, and Parties to agreements based Profile of the threads need usually be drawn exactly
on this patt of ISO 6410 are encouraged to investi- to scale.
gate the possibility of applying the most recent edi-
In technical drawings, the detailed representation
tions of the Standards indicated below. Members of
IEC and ISO maintain registers of currently valid of threads (see figures 1 to 3) should only be used
International Standards. if absolutely necessary and whenever possible the
helix should be represented by straight lines (see
ISO 128:1982, Technical drawings - General princi- figure 2).
ples of presen tation.
ISO 129:1985, Technical drawings - Dimensioning -
General principles, definitions, methods of execution
and special indica tions.
ISO 225:1983, Fasteners - Belts, screws, studs and
- Symbols and designations of dimensions.
nuts
- Ends of Parts with ex-
ISO 4753: 1983, Fasteners
L External thread L Internal thread
ternal metric ISO thread.
Figure 1
ISO 6410,3:1993, Technical drawings - Screw
threads and threaded Parts - Part 3: Simpliiied rep-
resentation.
ISO 6410~1:1993(E)
The space between the lines representing the crest
and root ofthe thread should approximate as closely
as possible the depth of the thread, but, in all cases,
this spacing shall be not less than
- twice the thickness of the thick line, or
- 0,7 mm,
whichever is the larger.
NOTE 1 In certain cases, for example computer-aided
draughting,
Figure 2
-
a distance of l,5 mm for threads of nominal diameter
d>8mm is generali y acceptable;
-
a simplified representation is recommended for
threads of nominal diameter d < 6 mm, see
ISO 641 O-3.
3.2.2 End view of screw threads
On an end view of a screw thread, the thread roots
shall be represented by a Portion of a circle, drawn
with a continuous thin line (type B, ISO 128) approx-
imately equal to three-quarters of the circumference
(see figures 4 and 5), preferably open in the right-
hand upper quadrant. The thick line representing the
chamfer circle is generally omitted on the end view
Figure 3
(see figures 4 and 5).
NOTE 2 The Portion of the circle may also have any
other Position relative to the intersecting axes (see
figure 6).
3.2 Conventional representation
3.2.3 Hidden screw threads
Normally, by convention, the representation of
threads and threaded Parts in all types of technical
Where it is necessary to show hidden screw threads,
drawings is simplified as shown in figures 4 to 7.
the crestsl) and the roots*) shall be represented by
dashed thin lines (type F, ISO 128), as shown in fig-
ure 7.
3.2.1 Views and sections of
...


ISO
NORME
INTERNATIONALE 641 O-1
Première édition
1993-05-I 5
Dessins techniques - Filetages et pièces
filetées -
Partie 1:
Conventions générales
Technical dra wings - Screw threads and threaded parts -
Part 1: General conventions
Numéro de référence
ISO 6410=1:1993(F)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération
mondiale d’organismes nationaux de normalisation (comités membres
de I’ISO). L’élaboration des Normes internationales est en général
confiée aux comités techniques de I’ISO. Chaque comité membre inté-
ressé par une étude a le droit de faire partie du comité technique créé
à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I’ISO participent également aux tra-
vaux. L’ISO collabore étroitement avec la Commission électrotechnique
internationale (CEI) en ce qui concerne la normalisation électrotech-
nique.
Les projets de Normes internationales adoptés par les comités techni-
ques sont soumis aux comités membres pour vote. Leur publication
comme Normes internationales requiert l’approbation de 75 % au moins
des comités membres votants.
La Norme internationale ISO 6410-l a été élaborée par le comité tech-
nique ISO/TC 10, Dessins techniques, définition des produits et docu-
mentation y relative, sous-comité SC 6, Documentation sur l’ingénierie
mécanique.
Cette première édition de I’ISO 6410-I annule et remplace
I’ISO 6410:1981, dont elle constitue une révision technique.
L’ISO 6410 comprend les pa rties suivante s, pré lsentées sous le titre gé-
néral Dessins techniq lues - Filetages et p ièces filetées:
- Partie 1: Conventions générales
- Partie 2: Inserts filetés
- Partie 3: Représentation simplifiée
L’annexe A de la présente partie de I’ISO 6410 est donnée uniquement
à titre d’information.
0 ISO 1993
peut être repro-
Droits de reproduction réservés. Aucune partie de cette publication ne
électronique ou
duite ni utilisée sous quelque forme que ce soit et par aucun procédé,
de l’éditeur.
mécanique, y compris la photocopie et les microfilms, sans l’accord écrit
Organisation internationale de normalisation
Case Postale 56 l CH-121 ? Genève 20 l Suisse
Imprimé en Suisse
ii
ISO 6410=1:1993(F)
Introduction
L’ISO 6410 a été concue comme un moyen universel de communication
entre les différentes Parties concernées par la conception, la fabrication
et le montage des éléments de fixation.
Les exigences varient considérablement au sein des industries, et c’est
pourquoi I’ISO 6410 a été présentée en trois parties (voir I’avant-
propos).
. . .
III
Page blanche
NORME INTERNATIONALE ISO 6410=1:1993(F)
Dessins techniques - Filetages et pièces filetées -
Partie 1:
Conventions générales
3 Représentation
1 Domaine d’application
La présente partie de I’ISO 6410 prescrit les métho-
des de représentation des filetages et des pièces fî-
3.1 Représentation détaillée des filetages
letées dans les dessins techniques.
Pour certains types de documentation technique de
2 Références normatives produit (par exemple publications, modes d’emploi,
etc.) la représentation détaillée d’un filetage en vue
Les normes suivantes contiennent des dispositions
de côté ou en coupe (voir figures 1 à 3) peut être
qui, par suite de la référence qui en est faite,
utilisée pour illustrer des pièces isolées ou assem-
constituent des dispositions valables pour la pré-
blées. Il n’est pas nécessaire de dessiner exac-
sente partie de I’ISO 6410. Au moment de la publi-
tement à l’échelle le pas et le profil du filetage.
cation, les éditions indiquées étaient en vigueur.
Dans les dessins techniques il est recommandé de
Toute norme est sujette à révision et les parties
n’utiliser la représentation détaillée des filetages
prenantes des accords fondés sur la présente partie
de I’ISO 6410 sont invitées à rechercher la possi- (voir figures 1 à 3) que si elle est absolument né-
bilité d’appliquer les éditions les plus récentes des cessaire, et lorsque c’est possible, il est recom-
mandé de représenter l’hélice par des lignes droites
normes indiquées ci-après. Les membres de la CEI
(voir figure 2).
et de I’ISO possèdent le registre des Normes inter-
nationales en vigueur à un moment donné.
ISO 128:1982, Dessins techniques - Principes géné-
raux de représentation.
ISO 129:1985, Dessins techniques - Cotation -
Principes généraux, définitions, méthodes
d’exécution et indications spéciales.
ISO 225:1983, Éléments de fixation - Vis, goujons et
écrous - Symboles et désignations des dimensions.
ISO 4753:1983, Éléments de fixation - Extrémités des
éléments a filetage extérieur métrique KO.
LFiletage exterieur L Filetage int&ieur
ISO 6410.3:1993, Dessins techniques - Filetages et
Figure 1
Partie 3: Représentation simplifiée.
pièces filetées -
.
ISO 641 O-1:1 993(F)
Il est recommandé que, dans la mesure du possible,
la distance entre les traits représentant lekommet
et le fond de filet soit égale à la hauteur du filet,
mais en tout cas, elle ne doit pas être inférieure à
la plus grande des deux valeurs suivantes:
- 2 fois la largeur du trait fort, ou
- 0,7 mm.
NOTE 1 Pour des raisons particulières, par exemple les
dessins assistés par ordinateur,
-
une distance de 1,5 mm pour des filetages de diamè-
Figure 2
tre nominal d 2 8 mm est en général acceptable;
-
une représentation simplifée est recommandée pour
les filetages de diamètre nominal d G 6 mm, -voir
ISO 641 O-3.
3.2.2 Vue en bout des filetages
Dans la vue en bout d’un filetage, le fond de filet doit
être représenté par une portion de cercle tracée en
trait continu fin (voir ISO 128, type B) sensiblement
égale aux trois quarts de la circonférence (voir fi-
gures 4 et 5) et de préférence ouvert dans le
quadrant supérieur droit. Le trait fort circulaire re-
présentant le chanfrein est normalement omis dans
la vue en bout (voir figures 4 et 5).
Figure 3
NOTE 2 La portion de cercle peut aussi avoir une autre
position par rapport aux axes d’intersection (voir
figure 6).
3.2 Représentation conventionnelle
3.2.3 Filetages cachés
Normalement dans tous les types de dessins tech-
Lorsqu’il est nécessaire de représenter les filetages
niques la représentation des filetages et des pièces
cachés, le sommet de filet’) et le fond de filet*) doi-
filetées est, par convention, simplifiée, comme re-
vent être représentés par des traits interrompus fins
présenté aux figures 4 à 7.
(voir ISO 128, type F), comme représenté à la
figure 7.
...

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