EN 4609:2019

SLOVENSKI STANDARD
01-januar-2020
Aeronavtika - Spiralni pogoni za navojne pritrdilne elemente - Geometrijska
opredelitev in tehnične zahteve
Aerospace series - Spiral drive recesses for threaded fasteners - Geometrical definition
and technical requirements
Luft- und Raumfahrt - Spiral-Innenantrieb für Schrauben - Definition der Geometrie und
Technische Anforderungen
Série aérospatiale - Empreintes spiral pour vis - Définition géométrique et exigence
technique
Ta slovenski standard je istoveten z: EN 4609:2019
ICS:
49.030.01 Vezni elementi na splošno Fasteners in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 4609
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 49.030.20
English Version
Aerospace series - Spiral drive recesses for threaded
fasteners - Geometrical definition and technical
requirements
Série aérospatiale - Empreintes en spirale pour Luft- und Raumfahrt - Spiral-Innenantrieb für
éléments de fixation filetés - Définition géométrique et Schrauben - Definition der Geometrie und Technische
exigences techniques Anforderungen
This European Standard was approved by CEN on 14 July 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 4609:2019 E
worldwide for CEN national Members.

Contents
Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Required characteristics: configuration — dimensions — tolerances . 5
5 Designation. 7
6 Recess gauging . 7
7 General technical requirements . 11
7.1 Test apparatus. 11
7.1.1 Fixture . 11
7.1.2 Torsion machine . 11
7.1.3 Driver bit . 11
7.1.4 Test specimens . 11
8 Detail technical requirements . 12
Bibliography . 15

European foreword
This document (EN 4609:2019) has been prepared by the Aerospace and Defence Industries
Association of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, prior to its presentation to CEN.
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 May 2020, and conflicting national standards shall be
withdrawn at the latest by May 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.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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.
Introduction
Aerospace and Defence Standardisation (ASD-STAN) draws attention to the fact that it is claimed that
compliance with this document may involve the use of a patent “Spiral Drive System for Threaded
Fasteners” EP1025370B1.
ASD-STAN takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured ASD-STAN that he/she is willing to negotiate licences under
reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this
respect, the statement of the holder of this patent right is registered with ASD-STAN. Information may
be obtained from:
Phillips Screw Company
301 Edgewater Place, Suite 320
Wakefield, Massachusetts 01880
U.S.A.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those identified above. ASD-STAN shall not be held responsible for identifying
any or all such patent rights.
1 Scope
This European Standard specifies dimensions, tolerances, characteristics and qualification
requirements for MORTORQ Spiral Drive Recesses .
2 Normative references
There are no normative references in this document.
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