1、BRITISH STANDARD AEROSPACE SERIESBS EN 4496:2005Incorporating corrigendum no. 1Screws, 100 countersunk normal 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) /
2、315 CThe European Standard EN 4496:2005 has the status of a British StandardICS 49.030.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 4496:
3、2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2006 BSI 2007ISBN 0 580 47213 2National forewordThis British Standard was published by BSI. It is the UK implementation of EN 4496:2005, incorporating corrigendum November 2006. T
4、he UK participation in its preparation was entrusted to Technical Committee ACE/21, Aerospace fasteners and fastening systems.A list of organizations represented ACE/21 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract
5、. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments16938 Corrigendum No. 128 February 2007 Correction to Table 4EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NOR
6、M EN 4496 December 2005 ICS 49.030.20 English Version Aerospace series - Screws, 100 countersunk normal 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
7、C Srie arospatiale - Vis tte fraise 100 normale, empreinte cruciforme dporte, ft normal tolrance serre, filetage court, en alliage de titane, anodises, avec revtement alumino-organique - Classification : 1 100 MPa ( temprature ambiante) / 315 C Luft- und Raumfahrt 100 Senk-Paschrauben, mit Flgelkreu
8、zschlitz, kurzes Gewinde, aus Titanlegierung, anodisiert, mit Aluminium pigmenttete Beschichtung - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 C This European Standard was approved by CEN on 26 October 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate t
9、he 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 Central Secretariat or to any CEN member. This European Standard exists i
10、n 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies
11、of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR ST
12、ANDARDIZATION 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 any means reserved worldwide for CEN national Members. Ref. No. EN 4496:2005: EIncorporating corrigendum November
13、20062 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 4496:20053 Foreword This European Standard (EN 4496:2005) has been prepared by the European Association of Aerospace Manuf
14、acturers - 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 of the member countries of AECMA, prior to its presentation to CEN. This Eur
15、opean 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 June 2006. Attention is drawn to the possibility that some of the elements
16、 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 Europe
17、an Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 4496:200
18、54 1 Scope This standard specifies the characteristics of screws, 100 countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating. Classification: 1 100 MPa 1) / 315 C 2)2 Normative references The followi
19、ng 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 3353-1, Aerospace Lead and runout threads Part 1: Rolled
20、 external threads. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. ISO 5856, Aerospace Screws, 100 normal countersunk head, internal offset cruciform ribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes l
21、ess than or equal to 1 100 MPa Dimensions. ISO 7913, Aerospace Bolts and screws, metric Tolerances of form and position. ISO 7994, Aerospace Internal drive, offset cruciform recess (Torq-Set ) for rotary fastening devices Metric series. ISO 9152, Aerospace Bolts, with MJ threads, in titanium alloys,
22、 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 pigmented coatings Coating methods.3) EN 9100, Aerospace series Quality management systems Requirements (based
23、 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 management systems Qualification Procedure for aerospace standard parts. MIL-L-87132B, Lubricant, Cetyl Alcoho
24、l, 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 that the screw can withstand without continuous change in its original characteristics, after return to ambient
25、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), the Pentagon, Washington, D.C.20301, USA. 5) Published as AECMA Technical Report at the date of publication
26、of this standard. EN 4496:20055 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are: in conformity with ISO 5856, expressed in millimetres and apply after coating (tolerance on shank diameter before coating is also specified). Detail
27、s 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 Lubrication with cetylic alcohol (chlorine free) according to MIL-L-87132 EN 4496:20
28、05Valuesin micrometresapplyprior tosurface treatment.Breaksharp edges0,1 to 0,4.Key 1 One hole diameterD6(optional)2 Thread 3 Marking 4 Blendedconvexformpermitted 5Drive:see Table3.6 ConformstoISO3353-1 Figure 1 3,2 0,8 EN 4496:20056Table1 D1D2D3D4D6EFGHL2L3nom.Tol.D5L10,2b cRMassd Diameter code Thr
29、eada before coating after coating max.min.nom.Tol. H13min. 0 0,08Code nom.nom.Tol. ef 030 MJ30,5-4h6h 3 0,026 0,041 0,0060,0316 5,44,52,30,060,630,3 1,27 003to0303 to306 0,310,03040 MJ40,7-4h6h 4 87,25,7830 0,51,1 0,080,930,4 1,69 003to0403 to407,55 0,40,640,06050 MJ50,8-4h6h 510 97,713,40,960,5 2,1
30、2 004to0504 to509 6 0,51,260,09060 MJ61-4h6h 6 0,030 0,045 0,0100,03512 10,89 4,21,5 1,262,54 005to0605 to6010 2,120,13070 MJ71-4h6h 714 12,810,285,21,572,96 006to0706 to7011 7 3,320,17080 MJ81-4h6h 816 14,812,216,21,9 1,6 3,39006to0806 to8011,57,50,74,390,23100 MJ101,25-4h6h 100,033 0,048 0,0130,03
31、820 18,815,437,91,934,23 008to1008 to100 14,59 0,80 0,29,230,34120 MJ121,25-4h6h 1224 22,818 9,82,4 2,535,08 010to12010 to120 16 10 0,915,680,51140 MJ141,5-4h6h1428 26,820,5711,53,145,93 010to14010 to140 19 12 23,260,68160 MJ161,5-4h6h1632 30,824,4313,53 3,2 6,77010to16010 to160 20,512,51,133,630,91
32、180 MJ181,5-4h6h180,036 0,051 0,0160,04136 34,825,7115,54,357,62 011to18011 to180 22,514,547,371,14200 MJ201,5-4h6h200,040 0,055 0,0200,04540 38,828,9217,50,53,8 0,1 4,680,6 8,47012to20012 to200 24,515 1,30 0,364,411,40aInaccordancewithISO5855-2, except the threadmajor diameter “dmax.“which shallbe
33、equal toD1min. 0,025. bIncrements: 1 forL1302 for30100 cIfgreaterlengths arerequired,theyshall be chosen using theabove increments. The length codecorresponds to length L1,completed byoneor twozeros to the left, wherenecessary, toobtain a three digit code.dApproximate values(kg/1 000pieces),calculat
34、edonthe basis of4,45kg/dm3, for information purposes only.Theyapplyto screwswithout holes. eValue for first L4fIncreasefor eachadditional millimetre of L4. EN 4496:20057 8 4 Designation EXAMPLE Description block SCREW Identity block EN4496D050040ANumber of this standard Hole code (see Table 2) Diame
35、ter code (see Table 1) Length code (see Table 1) Drive code (see 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
36、 1, indented. Table 4 Diameter code EN 2424 Style 030 and 040 N 050 to 200 C + MJ EN 4496:20059 6 Technical specification ISO 9152, with the following modifications: 6.1 Approval of manufacturers See EN 9100 6.2 Qualification of bolts See EN 9133 6.3 Requirement deleted Double shear strength 7 Overs
37、ized bolts See EN 4016 EN 4496:2005BS EN 4496:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated
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