SIST EN 4358:2009

Aerospace series - Six lobe recess - Drivers, double ended, 90°

This standard specifies the characteristics of drivers, double ended, 90°, six lobe recess, for aerospace applications.

Luft- und Raumfahrt - Sechs-Bogenzahn-Innenantrieb – 90° -Winkelschraubendreher für Schrauben

Diese Norm legt die Anforderungen für 90°-Winkelschraubendreher, doppelseitig, Sechs-Bogenzahn, Innen¬antrieb zur Verwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Empreinte six lobes - Clé mâles, coudée à 90°

Aeronavtika - Šestzoba vdolbina, notranji pogon - Kotni izvijač, obojestranski, 90°

General Information

• Status: Published
• Publication Date: 02-Apr-2009
• ICS: 49.030.99 - Other fasteners
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 20-Mar-2009
• Due Date: 25-May-2009
• Completion Date: 03-Apr-2009
• Ref Project: EN 4358:2006 - Aerospace series - Six lobe recess - Drivers, double ended, 90°

Overview

EN 4358:2006 is a European aerospace standard that specifies the characteristics of double-ended, 90° drivers with a six-lobe recess (six-lobe / Torx-style) for aerospace use. Prepared by ASD‑STAN and adopted by CEN, the standard defines configuration, dimensions, tolerances and marking requirements for these drivers. Dimensions are given in millimetres and detailed driver tip dimensions and length codes are provided in the standard’s figures and tables. The document also notes potential patent implications and references related normative documents.

Key topics

• Scope and purpose
  • Defines the required characteristics of drivers, double ended, 90°, six lobe recess for aerospace applications.
• Configuration, dimensions and tolerances
  • Driver configuration, tip geometry and nominal sizes are specified; dimensions and tolerances are provided in the published figures and tables (millimetres).
  • Length codes (short/long - S/L) and recess codes map to nominal driver sizes.
• Driver tip specification
  • Detailed tip parameters (E, F, N, R1, R2) and maximum/minimum tolerances per recess code are given to ensure fit and repeatability.
• Materials
  • Material selection is left to the manufacturer’s choice but must conform to the technical requirements referenced in EN 4359.
• Designation and marking
  • Standardized designation example: EN4358-55S (standard number + recess code + length code).
  • Marking is required per EN 2424 (style A) to ensure traceability and product identification.
• Normative references
  • EN 2424 - Marking of aerospace products
  • EN 4359 - Six lobe recess - Drivers - Technical specification

Applications

• Used by aerospace manufacturers, tool makers and maintenance organizations for:
  • Selecting and specifying 90° six-lobe drivers for aircraft assembly, repair and maintenance
  • Procurement and quality control of hand tools and service tooling
  • Tooling design and manufacturing to ensure interchangeability and fit with six-lobe aerospace fasteners
  • Creating inspection and acceptance criteria for maintenance workshops and suppliers
• Primary users: aerospace design engineers, tooling suppliers, maintenance engineers, procurement and quality assurance teams, and standards professionals.

Related standards

• EN 4359 - Technical specification for six lobe recess drivers (material and technical requirements)
• EN 2424 - Marking of aerospace products (defines marking style A referenced by EN 4358)

Keywords: EN 4358:2006, six lobe recess, double ended driver, 90° driver, aerospace series, driver tip dimensions, EN 4359, EN 2424, tool specification, aerospace tooling.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Sechs-Bogenzahn-Innenantrieb – 90° -Winkelschraubendreher für SchraubenSérie aérospatiale - Empreinte six lobes - Clé mâles, coudée à 90°Aerospace series - Six lobe recess - Drivers, double ended, 90°49.030.99Drugi vezni elementiOther fastenersICS:Ta slovenski standard je istoveten z:EN 4358:2006SIST EN 4358:2009en,de01-maj-2009SIST EN 4358:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4358December 2006ICS 49.030.99 English VersionAerospace series - Six lobe recess - Drivers, double ended, 90Série aérospatiale - Empreinte six lobes - Clé mâles,coudée à 90Luft- und Raumfahrt - Sechs-Bogenzahn, Innenantrieb - 90 -Winkelschraubendreher 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 4358:2006: ESIST EN 4358:2009
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