EN 4497-2005 en Aerospace series - Screws pan head offset cruciform recess close tolerance normal shank short thread in titanium alloy anodized with aluminum pigmented coating - Cl.pdf

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1、BRITISH STANDARD AEROSPACE SERIESBS EN 4497:2005Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating Classification: 1 100 MPa (at ambient temperature) / 315 CThe European Standard EN 4497:2005 has the st

2、atus of a British StandardICS 49.030.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 4497:2005This British Standard was published under the

3、authority of the Standards Policy and Strategy Committee on 31 January 2006 BSI 31 January 2006ISBN 0 580 47217 5National forewordThis British Standard is the official English language version of EN 4497:2005. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aeros

4、pace fasteners and fastening systems, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be fo

5、und in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are resp

6、onsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep

7、UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover.The BSI copyright notice displayed in this document indicates wh

8、en the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4497 December 2005 ICS 49.030.20 English Version Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in

9、titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 C Srie arospatiale - Vis tte cylindrique, empreinte cruciforme dporte, ft normal tolrance serre, filetage court, en alliage de titane, anodises, avec revtement alumino-organique - Cl

10、assification : 1 100 MPa ( temprature ambiante) / 315 C Luft- und Raumfahrt - Flachkopf-Paschrauben, mit Flgelkreuzschlitz, kurzes Gewinde, aus Titanlegierung, anodisiert, mit Aluminium pigmenttete Beschichtung - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 C This European Standard was approved by C

11、EN on 26 October 2005. 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 standar

12、ds 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 translation under the responsibility of a CEN member into its own language and notified to th

13、e Central Secretariat has the same status as the official versions. 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, Norw

14、ay, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by

15、any means reserved worldwide for CEN national Members. Ref. No. EN 4497:2005: E2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Required characteristics 5 4 Designation .8 5 Marking 8 6 Technical specification.9 7 Oversized bolts .9 EN 4497:20053 Foreword This European Standard (EN

16、4497:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-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 o

17、f the member countries of AECMA, 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 June 2006, and conflicting national standards shall be withdrawn at the latest by

18、 June 2006. 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

19、organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovaki

20、a, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 4497:20054 1 Scope This standard specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating. Classification: 1

21、 100 MPa 1) / 315 C 2)2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO

22、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 screws, metric Tolerances of form and position. ISO 7994, Aerospace Internal drive, offset cruciform recess (Torq-Set

23、 ) for rotary fastening devices Metric series. ISO 9152, Aerospace Bolts, with MJ threads, in titanium alloys, strength class 1 100 MPa Procurement specification. EN 2424, Aerospace series Marking of aerospace products. EN 4016, Aerospace series Oversized bolts.3)EN 4474, Aerospace series Aluminium

24、pigmented coatings Coating methods.3) EN 9100, Aerospace series Quality management systems Requirements (based on ISO 9001:2000) and Quality systems Model for quality assurance in design, development, production, installation and servicing (based on ISO 9001:1994). EN 9133, Aerospace series Quality

25、management systems Qualification Procedure for aerospace standard parts. MIL-L-87132B, Lubricant, Cetyl Alcohol, 1-Hexadecanol, Application to Fasteners.4)TR 3775, Aerospace series Bolts and pins Materials.5)1) Minimum tensile strength of the material at ambient temperature. 2) Maximum temperature t

26、hat the screw can withstand without continuous change in its original characteristics, after return to ambient temperature. The maximum temperature is determined by the coating. 3) Published as AECMA Prestandard at the date of publication of this standard. 4) Published by: Department of Defense (DoD

27、), the Pentagon, Washington, D.C.20301, USA. 5) Published as AECMA Technical Report at the date of publication of this standard. EN 4497:20055 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are expressed in millimetres and apply aft

28、er coating (tolerance on shank diameter before coating is also specified). Details of form not stated are left to the manufacturers discretion. 3.2 Tolerances of form and position See ISO 7913 3.3 Materials See TR 3775 (titanium alloy, strength class 1 100 MPa) 3.4 Surface treatments See EN 4474 Lub

29、rication with cetylic alcohol (chlorine free) according to MIL-L-87132 EN 4497:20056 Values in micrometres apply prior to surface treatment. Break sharp edges 0,1 to 0,4. Key 1 One hole diameter D5(optional) 2 Thread 3 Marking 4 Drive: see Table 3. 5 Conforms to ISO 3353-1 aShape optional Figure 1 3

30、,2 0,8 EN 4497:20057 Table 1 D1D2D3D4D5E nom. Tol. Diameter code Thread a before coating after coating 0 0,3 min. nom. Tol. H13 nom. Tol. 030 MJ30,5-4h6h 3 0,026 0,041 0,006 0,031 6 4,7 2,3 1,8 040 MJ40,7-4h6h 4 8 6,7 3 0 0,5 1,1 2,4 050 MJ50,8-4h6h 5 10 8,7 3,4 3 0 0,2 060 MJ61-4h6h 6 0,030 0,045 0

31、,010 0,035 12 10,7 4,2 1,5 3,6 070 MJ71-4h6h 7 14 12,7 5,2 4,2 080 MJ81-4h6h 8 16 14,7 6,2 1,9 4,8 100 MJ101,25-4h6h 10 0,033 0,048 0,013 0,038 20 18,7 7,9 6 120 MJ121,25-4h6h 12 0,036 0,051 0,016 0,041 24 22,7 9,8 0,5 2,4 7,2 0 0,3 L1 0,2 b c L2 L3 R S Mass dDiameter code Code nom. nom. Tol. max. m

32、in. e f 030 002 to 030 2 to 30 6 1,2 0,3 0,38 0,03 040 002 to 040 2 to 40 7,5 5 0,4 1,6 0,4 0,92 0,06 050 003 to 050 3 to 50 9 6 0,5 2 0,5 1,88 0,08 060 003 to 060 3 to 60 10 2,4 0,6 3,10 0,12 070 004 to 070 4 to 70 11 7 2,8 0,7 5,31 0,17 080 004 to 080 4 to 80 11,5 7,5 0,7 3,2 0,8 7,23 0,22 100 005

33、 to 100 5 to 100 14,5 9 0,8 0 0,2 4 1 14,24 0,35 120 006 to 120 6 to 120 16 10 0,9 0 0,3 4,8 1,2 25,17 0,50 aIn accordance with ISO 5855-2, except the thread major diameter “d max.“ which shall be equal to D1min. 0,025. bIncrements: 1 for L1 30 2 for 30 100 cIf greater lengths are required, they sha

34、ll be chosen using the above increments. The length code corresponds to length L1, completed by one or two zeros to the left, where necessary, to obtain a three digit code. dApproximate values (kg/1 000 pieces), calculated on the basis of 4,45 kg/dm3, for information purposes only. They apply to scr

35、ews without holes. eValue for head and first L4fIncrease for each additional millimetre of L4. EN 4497:20058 4 Designation EXAMPLE Description block SCREW Identity block EN4497D050010ANumber of this standard Hole code (see Table 2) Diameter code (see Table 1) Length code (see Table 1) Drive code (se

36、e Table 3) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. Table 2 Holes Code With DWithout (hyphen) Table 3 Drive Code ISO 7994 RISO 7994 unribbedA 5 Marking See Table 4 and Figure 1, indented. Table 4 Diameter code EN 2424 Style 030 and 040 N

37、 050 to 120 C + MJ EN 4497:20059 6 Technical specification ISO 9152, except for clauses: Approval of manufacturers: see EN 9100; Qualification of screws: see EN 9133. 7 Oversized bolts See EN 4016 EN 4497:2005BS EN 4497:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is

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