Fasteners - Hexagon washer head tapping screws (ISO 7053:2019)

This document specifies the characteristics of hexagon washer head tapping screws, made of steel and stainless steel, with thread sizes ST2,2 to ST8, and with product grade A.

Sechskant-Blechschrauben mit Bund (ISO 7053:2019)

Dieses Dokument legt Eigenschaften für Sechskant-Blechschrauben mit Bund aus Stahl und nichtrostendem Stahl mit den Gewindegrößen ST2,2 bis ST8 und der Produktklasse A fest.

Fixations - Vis à tôle à tête hexagonale à embase plate (ISO 7053:2019)

Le présent document spécifie les caractéristiques des vis à tôle à tête hexagonale à embase plate, en acier et en acier inoxydable, de dimensions de filetage de ST2,2 à ST8, et de grade A.

Vezni elementi - Samorezni vijak s šestrobo glavo s podložko (ISO 7053:2019)

Ta dokument določa značilnosti vrtalnih vijakov s šestrobo glavo s podložko in samoreznim navojem
iz jekla, z velikostmi navojev od ST2,9 do ST6,3 in razredom izdelave A.

General Information

Status
Published
Public Enquiry End Date
11-Jul-2018
Publication Date
18-Aug-2019
Technical Committee
ISEL - Mechanical elements
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Jul-2019
Due Date
28-Sep-2019
Completion Date
19-Aug-2019

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SIST EN ISO 7053:2019

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Relations

Effective Date
17-Jul-2019
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
26-Apr-2017

Overview

SIST EN ISO 7053:2019, titled Fasteners - Hexagon washer head tapping screws (ISO 7053:2019), is an international standard that specifies the characteristics and requirements for hexagon washer head tapping screws made from steel and stainless steel. This standard covers thread sizes from ST2,2 to ST8 and denotes product grade A screws, ensuring consistency and compatibility in engineering and construction applications. The standard was developed collaboratively by ISO/TC 2 "Fasteners" and CEN/TC 185 “Fasteners,” providing harmonized requirements across international markets and replacing the previous edition (EN ISO 7053:2011).

Key Topics

  • Product Characteristics:
    The standard details dimensions, mechanical properties, materials, and finishing options for hexagon washer head tapping screws, including:

    • Thread sizes: ST2,2 to ST8 (with some non-preferred sizes in brackets)
    • Materials: Steel and stainless steel (including A2-20H, A4-20H, and A5-20H stainless grades)
    • Product grade: Grade A, signifying higher precision and strict tolerances
  • Geometry and Design:

    • Hexagon washer head shape provides an integral washer, distributing load and increasing torque resistance.
    • Multiple end types (rounded, flat, cone) accommodate diverse assembly requirements.
  • Mechanical and Functional Requirements:

    • Mechanical properties for steel are specified in ISO 2702, while stainless steel properties are covered by ISO 3506-4.
    • Threads conform to ISO 1478, and overall tolerances align with ISO 4759-1 for product grade A.
  • Surface Finish and Coating:

    • Options for as-processed (clean and bright), electroplated (ISO 4042), or non-electrolytically applied zinc flake coatings (ISO 10683).
    • Stainless steel screws are passivated for enhanced corrosion resistance (per ISO 16048).
  • Quality Assurance:

    • Acceptance inspection process follows ISO 3269.
    • General fastener requirements are outlined in ISO 8992.

Applications

SIST EN ISO 7053:2019 covers hexagon washer head tapping screws utilized across industries where secure, self-forming connections in sheet materials are required. Key applications include:

  • Automotive and Transportation:
    Hexagon washer head tapping screws are widely used in automotive assembly and repair, providing high-strength fastening in steel and lightweight metal panels.
  • Construction and Engineering:
    Recommended for assembling steel frames, cladding, electrical enclosures, and modular components where reliable, vibration-resistant fastening is necessary.
  • Appliances and Consumer Goods:
    Used in the production of white goods, electronics, and machinery, these screws offer standardized fit and finish for streamlined mass production.
  • General Manufacturing:
    Suitable for a range of maintenance, installation, and fabrication tasks requiring fast, secure assembly in non-prepared holes.

Related Standards

For comprehensive implementation and quality control, the following related standards are referenced or aligned with SIST EN ISO 7053:2019:

  • ISO 1478 - Tapping screws thread
  • ISO 2702 - Heat-treated steel tapping screws - Mechanical properties
  • ISO 3269 - Fasteners - Acceptance inspection
  • ISO 3506-4 - Mechanical properties of corrosion-resistant stainless steel fasteners - Part 4: Tapping screws
  • ISO 4042 - Fasteners - Electroplated coating systems
  • ISO 4759-1 - Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B, C
  • ISO 8992 - General fastener requirements
  • ISO 10683 - Zinc flake coating systems for fasteners
  • ISO 225 - Symbols and descriptions of fastener dimensions

By adhering to SIST EN ISO 7053:2019, manufacturers, suppliers, and designers ensure the use of reliable, standardized hexagon washer head tapping screws that meet international requirements for performance, compatibility, and safety in a wide range of construction, industrial, and engineering applications.

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SIST EN ISO 7053:2019

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Frequently Asked Questions

SIST EN ISO 7053:2019 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Fasteners - Hexagon washer head tapping screws (ISO 7053:2019)". This standard covers: This document specifies the characteristics of hexagon washer head tapping screws, made of steel and stainless steel, with thread sizes ST2,2 to ST8, and with product grade A.

This document specifies the characteristics of hexagon washer head tapping screws, made of steel and stainless steel, with thread sizes ST2,2 to ST8, and with product grade A.

SIST EN ISO 7053:2019 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.

SIST EN ISO 7053:2019 has the following relationships with other standards: It is inter standard links to SIST EN ISO 7053:2011, SIST EN ISO 16000-11:2024, SIST EN 1337-2:2004, kSIST FprEN 4734-102:2024, SIST EN 12274-4:2004, SIST EN ISO 5674:2009, SIST EN ISO 7053:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN ISO 7053:2019 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-oktober-2019
Nadomešča:
SIST EN ISO 7053:2011
Vezni elementi - Samorezni vijak s šestrobo glavo s podložko (ISO 7053:2019)
Fasteners - Hexagon washer head tapping screws (ISO 7053:2019)
Sechskant-Blechschrauben mit Bund (ISO 7053:2019)
Fixations - Vis à tôle à tête hexagonale à embase plate (ISO 7053:2019)
Ta slovenski standard je istoveten z: EN ISO 7053:2019
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 7053
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2019
EUROPÄISCHE NORM
ICS 21.060.10 Supersedes EN ISO 7053:2011
English Version
Fasteners - Hexagon washer head tapping screws (ISO
7053:2019)
Fixations - Vis à tôle à tête hexagonale à embase plate Mechanische Verbindungselemente - Sechskant-
(ISO 7053:2019) Blechschrauben mit Bund (ISO 7053:2019)
This European Standard was approved by CEN on 2 June 2019.

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, Turkey 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7053:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 7053:2019) 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 2020, and conflicting national standards shall
be withdrawn at the latest by January 2020.
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 7053:2011.
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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 7053:2019 has been approved by CEN as EN ISO 7053:2019 without any modification.

INTERNATIONAL ISO
STANDARD 7053
Third edition
2019-06
Fasteners — Hexagon washer head
tapping screws
Fixations — Vis à tôle à tête hexagonale à embase plate
Reference number
ISO 7053:2019(E)
©
ISO 2019
ISO 7053:2019(E)
© ISO 2019
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.
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Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 7053:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions . 1
5 Requirements and reference International Standards . 3
6 Designation . 4
Bibliography . 5
ISO 7053:2019(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 matter
...