1、BS EN 4634:2009ICS 49.030.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Screws, 100countersunk head, six lobe recess, short thread, in heat resisting steel FE-PA2601 (A286), passivated Classification: 900 MPa (at ambient temperature) / 650 C
2、This British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010. BSI 2010ISBN 978 0 580 56457 4Amendments/corrigenda issued since publicationDate CommentsBS EN 4634:2009National forewordThis British Standard is the UK implementation of EN 4634:20
3、09.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionso
4、f a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 4634:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4634 July 2009 ICS 49.030.20 English Version Aerospace series - Screws, 100 countersunk
5、head, six lobe recess, short thread, in heat resisting steel FE-PA2601 (A286), passivated - Classification: 900 MPa (at ambient temperature) / 650 C Srie arospatiale - Vis, 100 tte fraise, filetage court, empreinte six lobes, en acier rsistant chaud FE-PA2601 (A286), passives - Classification : 900
6、Mpa ( temprature ambiante) / 650 C Luft- und Raumfahrt 100 Senkschrauben, kurzes Gewinde, Sechs-Bogenzahn, aus hochwarmfester Stahl FE-PA2601 (A286), passiviert - Klasse: 900 MPa (bei Raumtemperatur) / 650 C This European Standard was approved by CEN on 12 March 2009. CEN members are bound to comply
7、 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 Managemen
8、t 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 o
9、fficial 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,
10、 Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for
11、CEN national Members. Ref. No. EN 4634:2009: EBS EN 4634:2009EN 4634:2009 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Required characteristics .43.1 Configuration Dimensions Tolerances Masses .43.2 Materials .43.3 Surface treatment 53.4 Tolerances of form and position 54 Designa
12、tion 65 Marking .76 Technical specification .7BS EN 4634:2009EN 4634:2009 (E) 3 Foreword This document (EN 4634:2009) 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 th
13、is 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 e
14、ndorsement, at the latest by January 2010, and conflicting national standards shall be withdrawn at the latest by January 2010. 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 i
15、dentifying 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,
16、Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 4634:2009EN 4634:2009 (E) 4 1 Scope This standard specifies the characteristics of screws with
17、100 countersunk head, with six lobes recess, short thread, in heat resisting steel FE-PA2601, passivated, for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies
18、. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3353-1, Aerospace Lead and runout threads Part 1: Rolled external threads. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. ISO 7913, Aerospace Bolts and screw
19、s, metric Tolerances of form and position. EN 2399, Aerospace series Heat resisting steel FE-PA2601 (X4NiCrTiMoV26-15) Rm 900 MPa Bars for forged bolts D 25 mm. EN 2424, Aerospace series Marking of aerospace products. EN 2516, Aerospace series Passivation of corrosion resisting steels and decontamin
20、ation of nickel base alloys. EN 2576, Aerospace series Bolts in heat resisting steel FE-PA92HT (A286) Classification: 900 MPa/650 C Technical specification. 1)EN 3639, Aerospace series Heat resisting alloy FE-PA2601 Softened and cold worked Wire for forged fasteners D 15 mm - 900 MPa Rm 1100 MPa. 1)
21、EN 3911, Aerospace series Six lobe recess Geometrical definition. 1)TR 3775, Aerospace series Bolts and pins Materials. 2)3 Required characteristics 3.1 Configuration Dimensions Tolerances Masses See Figure 1 and Table 1. Dimensions and tolerances are in millimetres and apply after surface treatment
22、. 3.2 Materials EN 2399, EN 3639, TR 3775 1) Published as ASD Prestandard at the date of publication of this standard. 2) Published as ASD Technical Report at the date of publication of this standard. BS EN 4634:2009EN 4634:2009 (E) 5 3.3 Surface treatment EN 2516 3.4 Tolerances of form and position
23、 ISO 7913 Values in micrometres apply prior to surface treatment. Remove sharp edges 0,1 to 0,4. Key 1 Not concave 2 Pitch diameter 3 Thread 4 Conforms to ISO 3353-1 5 The rounded angle accepted 6 Six lobe recess conforms to EN 3911 7 Marking Figure 1 3,2 0,8 BS EN 4634:2009EN 4634:2009 (E) 6 Table
24、1 Thread D E F G H K L1 0,2 L2Code Designation h12 min. 0 0,08Ref. Ref. min. Length code min. 030 MJ30,5-4h6h 3 5,6 0,63 4,50 1,3 0,06 003 to 030 3 6 040 MJ40,7-4h6h 4 7,5 0,93 5,78 1,7 0,08 003 to 040 3 7,5 050 MJ50,8-4h6h 5 9,5 0,96 7,71 2,1 0,1 004 to 050 4 9 060 MJ61-4h6h 6 11,5 1,26 9,00 2,6 0,
25、1 005 to 060 5 10 080 MJ81-4h6h 8 15,4 1,60 12,21 3,4 0,1 006 to 080 6 11,5 100 MJ101,25-4h6h 10 19,3 1,93 15,43 4,2 0,1 008 to 100 8 14,5 120 MJ121,25-4h6h 12 23 2,53 18,00 5 0,1 010 to 100 10 16 Thread a P Q R V Recess code b Code Designation nom. Tol. nom. Tol. max. min. mm 030 MJ30,5-4h6h 0,8 0
26、0,1 2,3 0 0,5 0,13 EN3911-09 040 MJ40,7-4h6h 1 2,9 0,4 0,2 EN3911-15 050 MJ50,8-4h6h 1,1 0 0,2 3,8 0,5 0,25 EN3911-20 060 MJ61-4h6h 1,5 4,5 0,5 0,3 EN3911-27 080 MJ81-4h6h 2 0 0,3 6,2 0,7 0,5 EN3911-40 100 MJ101,25-4h6h 2,3 0 0,5 7,9 0,7 0,5 EN3911-45 120 MJ121,25-4h6h 2,8 9,9 0,8 0,6 EN3911-50 aCon
27、forms to ISO 5855-2. bSee EN 3911. 4 Designation EXAMPLE Description block SCREW Identity block EN4634-040003 Number of this standard Diameter code (see Table 1) Length code (see Table 1) BS EN 4634:2009EN 4634:2009 (E) 7 NOTE If necessary, the code I9005 shall be placed between the description bloc
28、k and the identity block. 5 Marking See Table 2 and Figure 1. Table 2 Diameter code EN 2424 Style 030 to 050 F 060 to 120 C + MJ 6 Technical specification EN 2576 BS EN4634:2009BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standard
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