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STANDARD
SIST EN 3912:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3912
April 2007 ICS 49.030.20 English Version
Aerospace series - Bolts, pan head, six lobe recess, relieved shank, long thread, in heat resisting steel FE-PA2601 (FE-PA92HT, A286), silver plated - Classification: 1 100 MPa (at ambient temperature) / 650 °C
Série aérospatiale - Vis à tête cylindrique, à empreinte six lobes, fût dégagé, filetage long, en acier résistant à chaud FE-PA2601 (FE-PA92HT, A286), argentées - Classification : 1 100 MPa (à température ambiante) / 650 °C
Luft- und Raumfahrt - Flachkopfschrauben, Sechs-Bogenzahn, Innenantrieb, langes Gewinde, aus hochwarmfestem Stahl FE-PA2601 (FE-PA92HT, A286), versilbert - Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C This 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 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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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.
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B-1050 Brussels © 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3912:2007: ESIST EN 3912:2009
EN 3912:2007 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Required characteristics.4 4 Designation.8 5 Marking.8 6 Technical specification.8
SIST EN 3912:2009
EN 3912:2007 (E) 3 Foreword This document (EN 3912:2007) 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 October 2007, and conflicting national standards shall be withdrawn at the latest by October 2007. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. 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, 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 the United Kingdom. SIST EN 3912:2009
EN 3912:2007 (E) 4 1 Scope This standard specifies the characteristics of pan head bolts with six lobe recess, relieved shank and long thread, in FE-PA2601 (FE-PA92HT), silver plated, for aerospace applications. Classification: 1 100 MPa 1) / 650 °C 2) NOTE Taking account of the recess geometry, the strength class to be used for the seating torque calculation shall not be greater than 900 MPa. 2 Normative references The followin
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