1、BS EN 4138:2009ICS 49.030.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Screws, pan head,offset cruciform recess,coarse tolerancenormal shank, mediumlength thread, in alloysteel, cadmium plated Classification : 1100 MPa (at ambienttemperatur
2、e) / 235 CCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31January 2010
3、 BSI 2010ISBN 978 0 580 68937 6Amendments/corrigenda issued since publicationDate CommentsBS EN 4138:2009National forewordThis British Standard is the UK implementation of EN 4138:2009. The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fasten
4、ing 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 provisionsof a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer imm
5、unityfrom legal obligations.Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4138:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4138 November 2009 ICS 49.030.20 E
6、nglish Version Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification : 1 100 MPa (at ambient temperature) / 235 C Srie arospatiale - Vis tte cylindrique, empreinte cruciforme dporte, tige nor
7、male tolrance large, filetage moyen, en acier alli, cadmies - Classification : 1 100 MPa ( temprature ambiante) / 235 C Luft- und Raumfahrt - Flachkopfschrauben, mit Flgelkreuzschlitz, mittlere Gewindelnge, aus legiertem Stahl, verkadmet - Klasse : 1 100 MPa (bei Raumtemperatur) / 235 C This Europea
8、n Standard was approved by CEN on 15 September 2009. 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 co
9、ncerning 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
10、 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, Lit
11、huania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, 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
12、 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4138:2009: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
13、BS EN 4138:2009EN 4138:2009 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Required characteristics .53.1 Configuration Dimensions Masses 53.2 Tolerances of form and positon .53.3 Materials .53.4 Surface treatment 54 Designation 85 Marking .86 Technical specification .9Copyright Eu
14、ropean Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4138:2009EN 4138:2009 (E) 3 Foreword This document (EN 4138:2009) has been prepared by the Aerospace and Defence Industries Association
15、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 Europe
16、an Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2010, and conflicting national standards shall be withdrawn at the latest by May 2010. Attention is drawn to the possibility that some of the elements of t
17、his 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 St
18、andard: 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 Kingdo
19、m. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4138:2009EN 4138:2009 (E) 4 1 Scope This European Standard specifies the characteristics of screws, pan head, offset cruc
20、iform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated. Classification: 1 100 MPa1)/ 235 C2).2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited appli
21、es. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2000, Aerospace series Quality assurance EN aerospace products Approval of the quality system of manufacturers EN 2133, Aerospace series Cadmium plating of steels with specified tensile s
22、trength 1 450 MPa, copper, copper alloys and nickel alloys EN 2137, Aerospace series Steel FE-PL75 1 100 MPa Rm 1 250 MPa Bars De 100 mm3)EN 2424, Aerospace series Marking of aerospace products3)EN 2442, Aerospace series Steel FE-PL711 1 100 MPa Rm 1 300 MPa Bars and wires De 25 mm3)EN 9133, Aerospa
23、ce series Quality management systems Qualification procedure for aerospace standard parts TR 3775, Aerospace series Bolts and pins Materials4)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
24、 7689, Aerospace Bolts, with MJ threads, made of alloy steel, strength class 1 100 MPa Procurement specification 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 ser
25、ies 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 temperature. The maximum temperature is determined by the surface treatment. 3) Published as
26、ASD-STAN Pre-Standard at the date of publication of this standard. 4) Published as ASD-STAN Technical Report at the date of publication of this standard. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted witho
27、ut license from IHS-,-,-BS EN 4138:2009EN 4138:2009 (E) 5 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are expressed in millimetres and apply after surface treatment. 3.2 Tolerances of form and positon ISO 7913. 3.3 Materials EN 2
28、137, EN 2442 or TR 3775 (alloy steel, classification 1 100 MPa). 3.4 Surface treatment EN 2133, 8 m to 14 m, on all surfaces which can be contacted by a 20 mm diameter ball. On all other surfaces, a continuous deposit shall be present, but no value is specified. Black colour option: code B.Copyright
29、 European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4138:2009EN 4138:2009 (E) 6 Dimensions in millimetres Figure 1 Key 1 Thread 2 Marking a Conforms to ISO 3353-1 b Drive c Shape option
30、al Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4138:2009EN 4138:2009 (E) 7 Table 1 Diameter code Threads 1)D1D2D3D4D5E h12 0 - 0,3 min. nom. Tol. H13 nom. Tol. 030 MJ3x
31、0,5 4h6h 3 6 4,7 2,3 0 1,8 0 - 0,2 040 MJ4x0,7 4h6h 4 8 6,7 3 - 0,5 1,1 2,4 050 MJ5x0,8 4h6h 5 10 8,7 3,4 + 0,5 1,5 3 060 MJ6x1 4h6h 6 12 10,7 4,2 3,6 0 - 0,3 070 MJ7x1 4h6h 7 14 12,7 5,2 1,9 4,2 080 MJ8x1 4h6h 8 16 14,7 6,2 4,8 100 MJ10x1,25 4h6h 10 20 18,7 7,9 2,4 6 120 MJ12x1,25 4h6h 12 24 22,7 9
32、,8 7,2 Diameter code L1 0,2 2) 3)L2L3R S Mass 4)Length code nom. nom. Tol. max. min. 5) 6) 030 002 to 030 2 to 30 7,5 0,4 0 - 0,2 1,2 0,3 0,792 0,055 040 002 to 040 2 to 40 10 6 1,6 0,4 1,922 0,099 050 003 to 050 3 to 50 12 7,5 0,5 2 0,5 3,835 0,153 060 003 to 060 3 to 60 14 8,5 0,7 2,4 0,6 6,620 0,
33、222 070 004 to 070 4 to 70 15 9,5 2,8 0,7 10,959 0,302 080 004 to 080 4 to 80 16,5 10,5 3,2 0,8 15,214 0,395 100 005 to 100 5 to 100 20,5 13 0,8 4 1 30,092 0,616 120 006 to 120 6 to 120 22,5 14,5 0,9 0 - 0,3 4,8 1,2 52,957 0,887 1) In accordance with ISO 5855-2. 2) Increments: 1 for L1100. 3) If gre
34、ater lengths are required, they shall be chosen using the above increments. The length code corresponds to the length L1, completed by one or two zeros to the left, where necessary, to obtain a three digit code. 4) Approximate values (kg/1 000pieces), calculated on the basis of 7,85 kg/dm, given for
35、 information purposes only. They apply to screws without holes. 5) Value for head and first L4. 6) Increase for each additional millimetre of L4. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without licen
36、se from IHS-,-,-BS EN 4138:2009EN 4138:2009 (E) 8 4 Designation EXAMLPE Description block Identity block SCREW EN 4138 D 050 040 A B Number of this standard Hole code (see Table 2) Diameter code (see Table 1) Length code (see Table 1) Drive code (see Table 3) Black colour code (see 3.4) NOTE If nece
37、ssary, the code I9005 may be placed between the description block and the identity block. Table 2 Holes Code with D without (hyphen) Table 3 Drive Code ISO 7994 None ISO 7994 unribbed A 5 Marking See able 4 and Figure 1. Table 4 Diameter code EN 2424 Style 030 and 040 N 050 to 120 B Copyright Europe
38、an Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4138:2009EN 4138:2009 (E) 9 6 Technical specification ISO 7689, except for clauses: a) Approval of manufacturers: see EN 2000; b) Qualificat
39、ion of screws: see EN 9133. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN4138:2009BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax
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