ISO 4027:2003

INTERNATIONAL ISO
STANDARD 4027
Third edition
2003-12-01
Hexagon socket set screws with cone
point
Vis sans tête à six pans creux, à bout tronconique

Reference number
ISO 4027:2003(E)
©
ISO 2003

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ISO 4027:2003(E)
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ISO 4027:2003(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
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Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 4027 was prepared by Technical Committee ISO/TC 2, Fasteners.
This third edition cancels and replaces the second edition (ISO 4027:1993), which has been technically revised.
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ISO 2003 – All rights reserved iii

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INTERNATIONAL STANDARD ISO 4027:2003(E)
Hexagon socket set screws with cone point
1Scope
This International Standard specifies the characteristics of hexagon socket set screws with cone point and
threads from M1,6 up to and including M24 and of product grade A.
If, in special cases, specifications other than those listed in this International Standard are required, they should
be selected from existing International Standards, e.g. ISO261, ISO898-5, ISO965-2, ISO3506-3 and
ISO 4759-1.
2 Normative references
The following referenced documents are indispensable for the application 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 designations of dimensions
ISO 261, ISO general-purpose metric screw threads — General plan
ISO 898-5, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 5: Set screws and
similar threaded fasteners not under tensile stresses
ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general
purpose external and internal screw threads — Medium quality
ISO 965-3, ISO general purpose metric screw threads — Tolerances — Part 3: Deviations for constructional
screw threads
ISO 3269, Fasteners — Acceptance inspection
ISO 3506-3, Mechanical properties of corrosion-resistant stainless-steel fasteners — Part 3: Set screws and
similar fasteners not under tensile stress
ISO 4042, Fasteners — Electroplated coat
...