EN ISO 4018:2022
(Main)Fasteners - Hexagon head screws - Product grade C (ISO 4018:2022)
Fasteners - Hexagon head screws - Product grade C (ISO 4018:2022)
This document specifies the characteristics of hexagon head screws, in steel, with metric coarse pitch threads M5 to M64, and with product grade C.
If in certain cases other specifications are requested, property classes can be selected from ISO 898-1, and dimensional options from ISO 888 or ISO 4753.
Verbindungselemente - Sechskantschrauben mit Gewinde bis Kopf - Produktklasse C (ISO 4018:2022)
Dieses Dokument legt Eigenschaften von Sechskantschrauben mit Gewinde bis Kopf aus Stahl mit metrischen Regelgewinden von M5 bis M64 und Produktklasse C fest.
Falls in bestimmten Fällen andere Festlegungen benötigt werden, können Festigkeitsklassen aus ISO 898 1 und maßliche Alternativen aus ISO 888 oder ISO 4753 entnommen werden.
Fixations - Vis à tête hexagonale entièrement filetées - Grade C (ISO 4018:2022)
Le présent document spécifie les caractéristiques des vis à tête hexagonale entièrement filetées, en acier, à filetage métrique à pas gros M5 à M64, et de grade C.
Si dans certains cas d’autres spécifications sont requises, les classes de qualité peuvent être choisies dans l'ISO 898‑1, et les options dimensionnelles dans l'ISO 888 ou l'ISO 4753.
Vezni elementi - Vijaki s šestrobo glavo z navojem do glave - Razred izdelave C (ISO 4018:2022)
Ta dokument določa značilnosti vijakov s šestrobo glavo z navojem do glave iz jekla, z grobim metričnim navojem
velikosti M5 do M64 in razredom izdelave C.
Če se v določenih primerih zahtevajo druge specifikacije, je razrede lastnosti mogoče izbrati po standardu ISO 898-1,
dimenzijske možnosti pa po ISO 888 ali ISO 4753.
General Information
Relations
Overview
EN ISO 4018:2022 - Fasteners - Hexagon head screws - Product grade C (ISO 4018:2022) is a CEN-endorsed international standard that defines the characteristics, dimensions and requirements for steel hexagon head screws with metric coarse pitch threads M5 to M64, specified as product grade C. The document harmonizes dimensional tables, marking and labelling rules, and references related mechanical and coating specifications for consistent manufacture, inspection and procurement across Europe and internationally.
Key Topics
- Scope and range: Applies to steel hexagon head screws, metric coarse threads M5–M64, product grade C.
- Dimensions and tolerances: Detailed dimensional tables (M5–M64) and figures for head, thread and underhead geometry; rules for incomplete thread (u ≤ 2P), optional washer-face and indentation.
- Length rules: Defines shortest and greatest standard lengths; greatest standard length limited to 200 mm unless agreed otherwise.
- Head forms and indentation: Permissible free-formed head shapes and optional head indentations added in this edition.
- Marking and labelling: Clause 6 sets requirements for product marking and packaging labelling to ensure traceability and conformity.
- Referenced standards & requirements: Integrates requirements from related ISO documents (e.g., ISO 898-1 for property classes, ISO 888/ISO 4753 for dimensional options, ISO 225, ISO 965-1, ISO 3269, ISO 4042, ISO 6157-1, ISO 10683, ISO 10684).
- Edition changes: Fifth edition updates include addition of M7, restructured tables, tolerance adjustments for M5 head bearing surface, and new marking/labelling rules.
Applications
- Manufacturers: Design and produce consistent, compliant hexagon head screws for inventory and OEM supply.
- Engineers and designers: Specify appropriate fasteners (size, length, property class options) for mechanical assemblies, machinery, automotive, construction and general engineering.
- Purchasing and quality: Use the standard for procurement specifications, acceptance inspection and traceability of supplied fasteners.
- Testing and conformity: Laboratories and inspection bodies apply referenced testing and surface-coating standards for acceptance.
Related Standards (if applicable)
- ISO 898-1 (mechanical properties/property classes)
- ISO 888, ISO 4753 (nominal lengths / thread ends)
- ISO 225, ISO 965-1 (dimensions and thread tolerances)
- ISO 3269, ISO 6157-1 (inspection, surface discontinuities)
- ISO 4042, ISO 10683, ISO 10684 (coating systems)
EN ISO 4018:2022 is essential for anyone specifying, manufacturing or inspecting metric hexagon head screws to ensure interchangeability, safety and supply-chain clarity.
Frequently Asked Questions
EN ISO 4018:2022 is a standard published by the European Committee for Standardization (CEN). Its full title is "Fasteners - Hexagon head screws - Product grade C (ISO 4018:2022)". This standard covers: This document specifies the characteristics of hexagon head screws, in steel, with metric coarse pitch threads M5 to M64, and with product grade C. If in certain cases other specifications are requested, property classes can be selected from ISO 898-1, and dimensional options from ISO 888 or ISO 4753.
This document specifies the characteristics of hexagon head screws, in steel, with metric coarse pitch threads M5 to M64, and with product grade C. If in certain cases other specifications are requested, property classes can be selected from ISO 898-1, and dimensional options from ISO 888 or ISO 4753.
EN ISO 4018:2022 is classified under the following ICS (International Classification for Standards) categories: 21.060.10 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 4018:2022 has the following relationships with other standards: It is inter standard links to EN ISO 4018:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN ISO 4018:2022 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 CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN ISO 4018:2011
Vezni elementi - Vijaki s šestrobo glavo z navojem do glave - Razred izdelave C
(ISO 4018:2022)
Fasteners - Hexagon head screws - Product grade C (ISO 4018:2022)
Mechanische Verbindungselemente - Sechskantschrauben mit Gewinde bis Kopf -
Produktklasse C (ISO 4018:2022)
Fixations - Vis à tête hexagonale entièrement filetées - Grade C (ISO 4018:2022)
Ta slovenski standard je istoveten z: EN ISO 4018:2022
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 4018
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2022
EUROPÄISCHE NORM
ICS 21.060.10 Supersedes EN ISO 4018:2011
English Version
Fasteners - Hexagon head screws - Product grade C (ISO
4018:2022)
Fixations - Vis à tête hexagonale entièrement filetées - Mechanische Verbindungselemente -
Grade C (ISO 4018:2022) Sechskantschrauben mit Gewinde bis Kopf -
Produktklasse C (ISO 4018:2022)
This European Standard was approved by CEN on 25 September 2021.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4018:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4018:2022) has been prepared by Technical Committee ISO/TC 2 "Fasteners" in
collaboration with Technical Committee CEN/TC 185 “Fasteners” the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2023, and conflicting national standards shall
be withdrawn at the latest by January 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 4018:2011.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 4018:2022 has been approved by CEN as EN ISO 4018:2022 without any modification.
INTERNATIONAL ISO
STANDARD 4018
Fifth edition
2022-06
Fasteners — Hexagon head screws —
Product grade C
Fixations — Vis à tête hexagonale entièrement filetées — Grade C
Reference number
ISO 4018:2022(E)
ISO 4018:2022(E)
© ISO 2022
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 4018:2022(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 . 6
6 Marking and labelling . 6
6.1 Marking on product . . 6
6.2 Labelling on package . 6
7 Designation . 7
Bibliography . 8
iii
ISO 4018:2022(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 of 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
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, in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
This fifth edition cancels and replaces the fourth edition (ISO 4018:2011), which has been technically
revised.
The main changes are as follows:
— the permissible shapes for free formed head and indentation on the head have been added;
— tables for dimensions have been restructured;
— M7 has been added;
— d has been changed for M5 from s – IT16 to s – IT15 (as for hexagon head screws of product
w,min min min
grades A and B) in order to have a larger bearing surface area and thus less contact pressure;
— the rules for the shortest and greatest standard lengths have been
...
SIST EN ISO 4018:2022は、六角頭ねじの特性を詳細に規定する文書であり、特に鋼製のメートル粗ごみスレッドM5からM64までの製品グレードCに焦点を当てています。この標準は、さまざまな産業分野において広く用いられる六角頭ねじの基準を提供し、品質、安全性、互換性を確保するための重要な役割を果たします。 この標準の強みは、まずその包括的な範囲にあります。M5からM64のスレッドサイズに対応することで、多様な用途に適したねじの設計が可能になり、製品の適合性を高めています。また、必要に応じてISO 898-1からの特性クラスや、ISO 888またはISO 4753からの寸法オプションを選択できることは、需要に応じた柔軟性をもたらします。この点は、エンジニアや製造業者にとって重要な利点と言えるでしょう。 さらに、EN ISO 4018:2022は国際的な標準であるため、異なる国や地域の間での互換性は非常に高く、グローバルな供給チェーンにおいても有効に機能します。これにより、異なる市場での取引や製品の調達が円滑になり、ビジネスの効率性を向上させます。 また、六角頭ねじ自体が構造物や機械の組み立てにおいて非常に重要な役割を果たすことから、この標準の重要性はますます増しています。適切なキャリブレーションと規格の遵守は、製品の信頼性を確保し、顧客満足度を高めることにつながります。 総じて、SIST EN ISO 4018:2022は、その明確な適用範囲、強力な互換性、そして品質保証の観点から、現代の製造業界において極めて重要な標準であると評価できます。この標準に従うことで、製品の品質を高めつつ市場競争力を維持・向上させることが期待されます。
SIST EN ISO 4018:2022 표준은 육각 머리 나사(Fasteners - Hexagon head screws) 제품 등급 C의 특성을 심도 있게 규명한 문서로, 강철로 제작된 M5에서 M64까지의 미터법 조립 나사를 포함하고 있습니다. 이 표준은 특히 조립 나사가 갖추어야 할 물리적 특성과 치수를 규명함으로써, 나사 제품이 산업별 요구 사항에 부합할 수 있도록 돕습니다. 이 표준의 주요 강점은 명확한 기술적 사양을 제공하여 제조업체와 사용자 간의 원활한 커뮤니케이션을 지원한다는 점입니다. 제품 등급 C는 일반적인 보편성과 신뢰성을 제공하므로, 다양한 분야에서 활용될 수 있는 재료의 기준이 되어 줍니다. 또한 관련 ISO 표준인 ISO 898-1에서 물성 클래스나 ISO 888, ISO 4753에서 치수 옵션을 선택할 수 있도록 하고 있어, 표준의 적응성이 뛰어납니다. SIST EN ISO 4018:2022의 적용성은 특히 기계 및 건축 분야에서 두드러지는데, 이는 다양한 조립 및 연결 작업에 필요한 나사 제품에 대한 일관된 품질 기준을 제시하기 때문입니다. 따라서 이 표준은 사용자가 필요로 하는 신뢰할 수 있는 나사 제품을 보다 쉽게 얻을 수 있도록 안내할 뿐만 아니라, 해당 산업에서의 안전과 효율성을 극대화하는 데 기여할 수 있습니다. 결론적으로, SIST EN ISO 4018:2022 표준은 육각 머리 나사에 대한 포괄적인 규정을 통해 상업 및 기술적 요구 사항을 충족시키는 데 필수적인 참고자료로 평가됩니다.
The EN ISO 4018:2022 standard provides crucial specifications for hexagon head screws, emphasizing its practical application in various engineering and construction projects. The standard covers product grade C, focusing on fasteners with metric coarse pitch threads ranging from M5 to M64, making it highly relevant for industries requiring robust and reliable fastening solutions. One of the strengths of this standard is its clarity in defining the characteristics of hexagon head screws. By outlining material properties and dimensional tolerances, the standard ensures that manufacturers and consumers can rely on consistency and quality in fasteners. Additionally, the reference to property classes from ISO 898-1 allows for flexibility in selecting appropriate strength parameters, which is vital for different load-bearing applications. The inclusion of dimensional options from ISO 888 and ISO 4753 further enhances the standard's comprehensiveness, as it facilitates compatibility with various components and assemblies. This adaptability is significant in today’s manufacturing environments, where precision and interchangeability are essential for operational efficiency. Overall, the EN ISO 4018:2022 standard is a relevant and robust tool for professionals involved in the specification, production, and application of hexagon head screws, reinforcing best practices and promoting safety in fastener usage across multiple sectors. The detailed framework provided by this standard not only supports industry compliance but also encourages innovation in the development of high-quality fasteners.
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