Aerospace series - Six lobe recess - Drivers, handle

This standard specifies the characteristics of drivers, handle, six lobe recess, for aerospace applications.

Luft- und Raumfahrt - Sechs-Bogenzahn-Innenantrieb - Schraubendreher

Diese Norm legt die Anforderungen an Schraubendreher, mit Griff, Sechs-Bogenzahn, Innenantrieb zur Verwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Empreinte six lobes - Tournevis

Aeronavtika - Šestzoba vdolbina, notranji pogon - Izvijač (z držalom)

General Information

Status
Published
Publication Date
19-Dec-2006
Withdrawal Date
29-Jun-2007
ICS
49.030.99 - Other fasteners
Technical Committee
ASD-STAN - Aerospace
Drafting Committee
ASD-STAN/D 3 - Mechanical
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
31-May-2017
Completion Date
14-Apr-2025
Ref Project
SIST EN 4357:2009 - Aerospace series - Six lobe recess - Drivers, handle

Overview

EN 4357:2006 is a European aerospace standard published by CEN that specifies the required characteristics of drivers and handles for six‑lobe recess fasteners used in aerospace applications. The standard defines configuration, dimensional tolerances, permissible masses, marking and designation conventions. It also references related technical specifications to ensure consistent manufacturing, identification and interchangeability across the aerospace supply chain.

Key administrative points from the document include CEN approval (28 August 2006) and the requirement that CEN members adopt the standard as a national standard by mid‑2007. The document is issued alongside normative references that are indispensable for correct application.

Key Topics

  • Scope and purpose: Defines the characteristics of six‑lobe recess drivers and handles intended for aerospace use, focusing on repeatable geometry and identification.
  • Dimensions and tolerances: The standard provides figures and a table of driver tip dimensions and tolerances by recess code (see Table 1 in the standard). Dimensions are given in millimetres and include radii and maximum/minimum limits.
  • Materials: Material quality is left to the manufacturer's option but must meet the requirements of EN 4359 (Aerospace series - Six lobe recess - Drivers - Technical specification).
  • Designation: A standardized designation format is specified (example identity block: EN4357-) to support clear product identification.
  • Marking: Marking is to follow EN 2424 (style A) for aerospace product identification, as shown on the standard's illustrative figure.
  • Normative references: EN 2424 and EN 4359 are cited as essential for correct application and compliance.

Applications

EN 4357:2006 is intended for use by:

  • Aerospace component manufacturers producing drivers and handle assemblies for six‑lobe fasteners.
  • Procurement and quality assurance teams specifying interchangeability, marking and traceability requirements.
  • Design engineers who need consistent driver geometries to ensure proper engagement with six‑lobe recess fasteners.

Benefits include:

  • Interchangeability: Standardized dimensions and designation simplify maintenance and replacement.
  • Safety and reliability: Consistent tip geometry and material requirements reduce the risk of fastener damage and assembly errors.
  • Traceability: Defined marking and designation help with part identification and lifecycle management.

Related Standards

  • EN 4359 - Aerospace series - Six lobe recess - Drivers - Technical specification (material and technical details).
  • EN 2424 - Aerospace series - Marking of aerospace products (marking style and requirements).

For full implementation, consult the complete EN 4357:2006 document and its normative references to ensure compliance with dimensional tables, figures and the specified marking and designation conventions.

Frequently Asked Questions

EN 4357:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Six lobe recess - Drivers, handle". This standard covers: This standard specifies the characteristics of drivers, handle, six lobe recess, for aerospace applications.

This standard specifies the characteristics of drivers, handle, six lobe recess, for aerospace applications.

EN 4357:2006 is classified under the following ICS (International Classification for Standards) categories: 49.030.99 - Other fasteners. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 4357:2006 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.ORPLuft- und Raumfahrt - Sechs-Bogenzahn, Innenantrieb - SchraubendreherSérie aérospatiale - Empreinte six lobes - TournevisAerospace series - Six lobe recess - Drivers, handle49.030.99Drugi vezni elementiOther fastenersICS:Ta slovenski standard je istoveten z:EN 4357:2006SIST EN 4357:2009en,de01-maj-2009SIST EN 4357:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4357December 2006ICS 49.030.99 English VersionAerospace series - Six lobe recess - Drivers, handleSérie aérospatiale - Empreinte six lobes - TournevisLuft- und Raumfahrt - Sechs-Bogenzahn, Innenantrieb -Schraubendreher für SchraubenThis European Standard was approved by CEN on 28 August 2006.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4357:2006: ESIST EN 4357:2009
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