Hexagon nuts with flange - Fine pitch thread (ISO 10663:1999, modified)

This European Standard specifies the characteristics of hexagon nuts with flange, with metric fine pitch thread, with nominal thread diameters from 8 mm up to and including 20 mm, in product grade A for d = 16 mm and product grade B for d > 16 mm and with property classes 8, 10, 12 and A2-70.
If, in special cases, specifications other than those listed in this European Standard are required, they should be selected from existing European and International Standards, for example ISO 261 ISO 724, EN ISO 898-6, ISO 965-2, EN ISO 3506-2.

Sechskantmuttern mit Flansch - Feingewinde (ISO 10663:1999, modifiziert)

Diese Europäische Norm legt Eigenschaften für Sechskantmuttern mit Flansch mit metrischem Feingewinde mit Nenndurchmessern (d) von 8 mm bis 20 mm, mit Produktklasse A für d   16 mm und Produktklasse B für d > 16 mm und mit Festigkeitsklassen 8, 10, 12 und A2-70 fest.
Werden in besonderen Fällen andere Festlegungen als die in der vorliegenden Europäischen Norm benötigt, so sollten diese den bestehenden Europäischen oder Internationalen Normen entnommen werden, z. B. ISO 724, EN ISO 898-6, ISO 965-2, EN ISO 3506-2.

Ecrous hexagonaux a embase cylindro-tronçonique - Filetage a pas fin (ISO 10663:1999, modifiée)

Šestrobe matice s krajcem - Fini navoj (ISO 10663:1999, dopolnjen)

General Information

Status
Published
Publication Date
31-Dec-2003
ICS
21.060.20 - Nuts
Technical Committee
ISEL - Mechanical elements
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jan-2004
Due Date
01-Jan-2004
Completion Date
01-Jan-2004
Ref Project
EN 14218:2003 - Hexagon nuts with flange - Fine pitch thread (ISO 10663:1999, modified)

Overview

EN 14218:2003 specifies the characteristics of hexagon nuts with flange having metric fine pitch thread (based on ISO 10663:1999, modified). The standard covers nominal thread diameters from 8 mm up to and including 20 mm, defines applicable product grades and property classes, and sets dimensional, mechanical and acceptance requirements for these flanged hex nuts used in mechanical assemblies.

Key facts:

  • Title: Hexagon nuts with flange - Fine pitch thread (ISO 10663:1999, modified)
  • Organization: CEN (European Standard)
  • Diameters covered: 8 mm to 20 mm
  • Property classes included: 8, 10, 12 and A2‑70
  • Modifications to ISO 10663: M10 width‑across‑flats specified as 16 mm (instead of 15 mm); property class 9 deleted; option added for zinc flake coatings per EN ISO 10683

Key topics and requirements

  • Dimensions & tolerances: Detailed dimensional tables and figures define hexagon geometry, flange thickness, wrenching heights and corner radii for specified thread sizes. Tolerances reference EN ISO 4759‑1 and ISO thread standards (ISO 261 / ISO 724 / ISO 965‑2).
  • Product grades and styles: The standard indicates product grades and style decisions (see normative Table 2) relevant for mechanical properties and testing.
  • Mechanical properties: Nuts are covered for property classes 8, 10, 12 and A2‑70 with mechanical requirements referenced to EN ISO 898‑6 (fine pitch nuts) and EN ISO 3506‑2 (stainless steel).
  • Surface finishes and coatings: Electroplating referenced to EN ISO 4042; non‑electrolytically applied zinc flake coatings to EN ISO 10683.
  • Acceptance & inspection: Acceptance inspection procedures reference EN ISO 3269; limits for surface discontinuities reference EN 493.
  • Gauging: Annex A (normative) describes practical gauging methods using plain ring gauges (A and B) and a gauge C for flange thickness to verify dimensions and corner fill.

Applications and users

EN 14218 is used by:

  • Fastener manufacturers and formulators of product specifications
  • Mechanical design engineers and procurement teams specifying fine‑pitch flanged hex nuts for assemblies
  • Quality and inspection personnel performing acceptance testing and gauging
  • Suppliers and purchasers who require harmonised European dimensions, tolerances and mechanical class designations

Typical practical uses:

  • Mechanical assemblies where a flange provides a bearing surface and fine pitch thread is required for precision adjustment or higher thread engagement
  • Applications specifying stainless‑steel A2‑70 nuts or high‑strength property classes (8, 10, 12)

Related standards

Relevant referenced documents for complementary requirements and selection:

  • ISO 261, ISO 724, ISO 965‑2 (metric thread definitions and limits)
  • EN ISO 898‑6 (mechanical properties - fine pitch nuts)
  • EN ISO 3506‑2 (stainless steel fasteners)
  • EN ISO 4759‑1 (tolerances)
  • EN ISO 4042, EN ISO 10683 (coatings)
  • EN ISO 3269, EN 493 (acceptance and surface discontinuities)

Example designation from the standard:
Hexagon nut with flange EN 14218 - M12 x 1,25 - 10.

Frequently Asked Questions

SIST EN 14218:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Hexagon nuts with flange - Fine pitch thread (ISO 10663:1999, modified)". This standard covers: This European Standard specifies the characteristics of hexagon nuts with flange, with metric fine pitch thread, with nominal thread diameters from 8 mm up to and including 20 mm, in product grade A for d = 16 mm and product grade B for d > 16 mm and with property classes 8, 10, 12 and A2-70. If, in special cases, specifications other than those listed in this European Standard are required, they should be selected from existing European and International Standards, for example ISO 261 ISO 724, EN ISO 898-6, ISO 965-2, EN ISO 3506-2.

This European Standard specifies the characteristics of hexagon nuts with flange, with metric fine pitch thread, with nominal thread diameters from 8 mm up to and including 20 mm, in product grade A for d = 16 mm and product grade B for d > 16 mm and with property classes 8, 10, 12 and A2-70. If, in special cases, specifications other than those listed in this European Standard are required, they should be selected from existing European and International Standards, for example ISO 261 ISO 724, EN ISO 898-6, ISO 965-2, EN ISO 3506-2.

SIST EN 14218:2004 is classified under the following ICS (International Classification for Standards) categories: 21.060.20 - Nuts. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 14218:2004 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)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Šestrobe matice s krajcem - Fini navoj (ISO 10663:1999, dopolnjen)Sechskantmuttern mit Flansch - Feingewinde (ISO 10663:1999, modifiziert)Ecrous hexagonaux a embase cylindro-tronçonique - Filetage a pas fin (ISO 10663:1999, modifiée)Hexagon nuts with flange - Fine pitch thread (ISO 10663:1999, modified)21.060.20MaticeNutsICS:Ta slovenski standard je istoveten z:EN 14218:2003SIST EN 14218:2004en01-januar-2004SIST EN 14218:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14218April 2003ICS 21.060.20English versionHexagon nuts with flange - Fine pitch thread (ISO 10663:1999,modified)Ecrous hexagonaux à embase cylindro-tronçonique -Filetage à pas fin (ISO 10663:1999, modifiée)Sechskantmuttern mit Flansch - Feingewinde (ISO10663:1999, modifiziert)This European Standard was approved by CEN on 14 February 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14218:2003 ESIST EN 14218:2004

16 mm and productgrade B for d > 16 mm and with property classes 8, 10, 12 and A2-70.If, in special cases, specifications other than those listed in this European Standard are required, they should beselected from existing European and International Standards, for example ISO 261 ISO 724, EN ISO 898-6,ISO 965-2, EN ISO 3506-2.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 493, Fasteners — Surface discontinuities — Nuts.EN 20225, Fasteners — Bolts, screws, studs and nuts — Symbols and designations of dimensions (ISO 225:1983).EN ISO 898-6, Mechanical properties of fasteners — Part 6: Nuts with specified proof load values — Fine pitchthread (ISO 898-6:1994).EN ISO 3269, Fasten
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