ISO 15786:2008

Technical drawings — Simplified representation and dimensioning of holes

ISO 15786:2008 specifies rules for the simplified representation, dimensioning and tolerancing of holes, counterbores, internal threads and chamfers on drawings.

Dessins techniques — Représentation et cotation simplifiées des trous

General Information

• Status: Published
• Publication Date: 01-Oct-2008
• ICS: 01.100.20 - Mechanical engineering drawings
• Technical Committee: ISO/TC 10/SC 6 - Mechanical engineering documentation
• Drafting Committee: ISO/TC 10/SC 6 - Mechanical engineering documentation
• Current Stage: 9060 - Close of review
• Start Date: 04-Mar-2029

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 15786
First edition
2008-10-01

Technical drawings — Simplified
representation and dimensioning of holes
Dessins techniques — Représentation et cotation simplifiées des trous




Reference number
ISO 15786:2008(E)
©
ISO 2008

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ISO 15786:2008(E)
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ISO 15786:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Methods of representation and dimensioning of holes. 2
4.1 Complete representation and complete dimensioning of holes. 2
4.2 Complete representation and simplified dimensioning of holes. 2
4.3 Simplified representation and simplified dimensioning of holes. 2
4.4 Representation of holes on the same drawing. 2
5 Structure of dimensioning of holes . 3
5.1 Structure and sequence of descriptive elements for simplified dimensioning of holes . 3
5.2 Graphical symbols. 4
5.3 Number of groups of holes and number of holes in a group. 6
5.4 Indication of tolerances. 7
5.5 Hole bottom . 7
5.6 Countersinks and chamfers . 7
5.7 Depth dimensions. 8
5.8 Indication of surface texture. 10
5.9 Indication of dimensions on geometrical tolerances. 12
Annex A (informative) Examples for representation and dimensioning of holes, counterbores and
internal threads .
...