1、BS EN 4072:2016Aerospace series Screws,100 countersunk normalhead, offset cruciform recess,close tolerance shank, shortthread in titanium alloy,aluminium IVD coated Classification: 1 100 MPa (atambient temperature) / 425 CIncorporating corrigendum January 2017BSI Standards PublicationWB11885_BSI_Sta
2、ndardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 4072:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4072:2016. Itsupersedes BS EN 4072:2009 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fast
3、eners and fastening systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 201
4、7. Published by BSI Standards Limited 2017ISBN 978 0 580 97587 5 ICS 49.030.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2016.Amendments/corrigenda i
5、ssued since publicationDate Text affectedImplementation of CEN corrigendum January 2017:28 February 2017see CEN foreword for detailsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4072 March 2016 ICS 49.030.20 Supersedes EN 4072:2009 English Version Aerospace series - Screws, 100 countersunk no
6、rmal head, offset cruciform recess, close tolerance shank, short thread in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425 C Srie arospatiale - Vis tte fraise 100 normale, empreinte cruciforme dporte, ft tolrance serre, filetage court, en alliage de ti
7、tane, revtues aluminium IVD - Classification: 1 100 MPa ( temprature ambiente) /425 C Luft- und Raumfahrt - 100 Senkschrauben mit Flgelkreuzschlitz, kurzes Gewinde, aus Titanlegierung, Aluminium IVD beschichtet - Klasse: 1 100 Mpa (bei Raumtemperatur) / 425 C This European Standard was approved by C
8、EN on 27 September 2015. 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 stand
9、ards may be obtained on application to the CEN-CENELEC 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 no
10、tified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary,
11、Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. This document consolidates EN 4072:2016 and the corrigendum EN 4072:2016/AC:2017. EUROPEAN COMMITTEE FOR STANDARDI
12、ZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4072:2016 E EN 4072:2016 (E) 2 Contents Page
13、 European 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 Annex A (informative) Standard evolution form . 10 BS EN 4072:2016EN 4072:2016 (E) 3 European Foreword This document (EN 4072:2016) has
14、 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 mem
15、ber 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 September 2016, and conflicting national standards shall be withdrawn at the latest by Septe
16、mber 2016. 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. This document supersedes EN 4072:2009. This document includes the corrigend
17、um EN 4072:2016/AC:2017 which corrects the figure in Clause 4. 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, Croatia, Cyprus, Czech Republic, Denmark, Eston
18、ia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4072:2016EN 4072:2
19、016 (E) 4 1 Scope This standard specifies the characteristics of screws, 100 countersunk normal head, offset cruciform recess, close tolerance shank, short thread, in titanium alloy, aluminium IVD coated. Classification: 1 100 MPa1) / 425 C2). 2 Normative references The following documents, in whole
20、 or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2424, Aerospace series Marking of aer
21、ospace products EN 4016, Aerospace series Oversized bolts EN 6118, Aerospace series Process specification Aluminium base protection for fasteners EN 9100, Quality Management Systems Requirements for Aviation, Space and Defense Organizations EN 9133, Aerospace series Quality management systems Qualif
22、ication procedure for aerospace standard parts 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 5856, Aerospace Screws, 100 degrees normal countersunk head, internal offset cruciform ribbed
23、or unribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa Dimensions ISO 7913, Aerospace Bolts and screws, metric Tolerances of form and position ISO 9152, Aerospace Bolts, with MJ threads, in titanium
24、alloys, strength class 1 100 MPa Procurement specification ISO 14275, Aerospace Drives, internal, offset cruciform, ribbed Metric series ISO 14276, Aerospace Drives, internal, offset cruciform Metric series TR 3775, Aerospace series Bolts and pins MaterialsMIL-DTL-83488, Coating, aluminum, high puri
25、ty 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. BS EN 4072:2016EN 4
26、072:2016 (E) 5 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 surface treatment. Details of form not stated are left to the manufacturers discretion. 3.2 Tol
27、erances of form and position ISO 7913. 3.3 Materials TR 3775: titanium alloy, strength class 1 100 MPa. BS EN 4072:2016EN 4072:2016 (E) 6 3.4 Surface treatment MIL-DTL-83488, type II, class 3, thickness 4 m to 12 m, or EN 6118. After aluminium deposit: mechanical blasting, followed by a chromate con
28、version coating within 24 h max.3); optional lubrication with cethylic alcohol (code E). Values in micrometres apply prior to surface treatment. Break sharp edges 0,1 to 0,4. Key 1 One hole diameter D6(optional, see Table 2) 2 Thread 3 Marking 4 Blended convex form permitted 5 Drive: see Table 3. 6
29、Conforms to ISO 3353-1 Figure 1 3) Products used shall be in conformity with national regulation into force. BS EN 4072:2016EN 4072:2016 (E) 7 Table 1 Diameter code Thread aD1D2D3D4D5D6E F nom. Tol. max. min. nom. Tol. H13 min. 0 0,08 030 MJ30,5 4h6h 3 0,006 0,031 6 5,4 4,50 2,3 0 0,5 0,06 0,63 040
30、MJ40,7 4h6h 4 0,010 0,035 8 7,2 5,78 3,0 1,1 0,08 0,93 050 MJ50,8 4h6h 5 10 9,0 7,71 3,4 0,5 1,5 0,10 0,96 060 MJ61 4h6h 6 12 10,8 9,00 4,2 1,26 070 MJ71 4h6h 7 0,013 0,038 14 12,8 10,28 5,2 1,9 1,57 080 MJ81 4h6h 8 16 14,8 12,21 6,2 1,60 100 MJ101,25 4h6h 10 20 18,8 15,43 7,9 2,4 1,93 120 MJ121,25
31、4h6h 12 0,016 0,041 24 22,8 18,00 9,8 2,53 140 MJ141,5 4h6h 14 28 26,8 20,57 11,5 3,0 3,14 160 MJ161,5 4h6h 16 32 30,8 24,43 13,5 3,20 180 MJ181,5 4h6h 18 36 34,8 25,71 15,5 3,8 4,35 200 MJ201,5 4h6h 20 0,020 0,045 40 38,8 28,92 17,5 4,68 Diameter code G H L1 0,2b, cL2L3R Mass d Length code nom. nom
32、. Tol. ef030 0,3 1,27 003 to 030 3 to 30 6,0 0,4 0 0,2 0,31 0,03 040 0,4 1,69 003 to 040 3 to 40 7,5 5,0 0,64 0,06 050 0,5 2,12 004 to 050 4 to 50 9,0 6,0 0,5 1,26 0,09 060 0,6 2,54 005 to 060 5 to 60 10,0 7,0 0,7 2,12 0,13 070 2,96 006 to 070 6 to 70 11,0 3,32 0,17 080 3,39 006 to 080 6 to 80 11,5
33、7,5 4,39 0,23 100 4,23 008 to 100 8 to 100 14,5 9,0 0,8 9,23 0,34 120 5,08 010 to 120 10 to 120 16,0 10,0 0,9 0 0,3 15,68 0,51 140 5,93 010 to 140 10 to 140 19,0 12,0 1,1 23,26 0,68 160 6,77 010 to 160 10 to 160 20,5 12,5 33,63 0,91 180 7,62 011 to 180 11 to 180 22,5 14,5 1,3 47,37 1,14 200 8,47 012
34、 to 200 12 to 200 24,5 15,0 64,41 1,40 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 shall be chosen using the above increments. The length code corres
35、ponds to the 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 screws without holes. eValue for head and first L4. f Increase
36、 for each additional millimetre of L4. BS EN 4072:2016EN 4072:2016 (E) 8 4 Designation EXAMPLE null Description block SCREW Identity block EN4072 D 050 040 A E Number of this standard Hole code (see Table 2) Diameter code (see Table 1) Length code (see Table 1) Drive code (see Table 3) Lubrication c
37、ode (see 3.4) null NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. Table 2 Hole Code with D without (hyphen) Table 3 Drive Code ISO 14276 R ISO 14275 A 5 Marking See Table 3 and Figure 1, intended. BS EN 4072:2016EN 4072:2016 (E) 9 Table 4 Diam
38、eter code EN 2424 Style 030 and 040 N 050 to 200 C + MJ 6 Technical specification 6.1 General ISO 9152, with the following modifications. Recess removal torque test following ISO 9152 except torque to be applied per Table 5: Table 5 Recess number Removal torque (Nm) 3 1,15 3,5 3 4 4,6 5 5,7 6 16,4 8
39、 26 10 49 12 119 6.2 Approval of manufacturers EN 9100. 6.3 Qualification of bolts EN 9133. 6.4 Requirement deleted Double shear strength. 7 Oversized bolts EN 4016. BS EN 4072:2016EN 4072:2016 (E) 10 Annex A (informative) Standard evolution form MODIFICATION REASON AND VALIDATION ISO 7994 Replaced
40、by ISO 14275 and ISO 14276 Replaced MIL-C-83488C by MIL-DTL-83488 or EN 6118 Reference to EN 6118 is added as an alternative. The issue letter of MIL-DTL-83488 is removed. Roughness symbol inside and above the drawing Add to all symbols : max e.g. Ramax 3,2 Ramax 0,8 Modify symbols according to ISO
41、1302. Remove 1,6 above the drawing. Ra 1,6 does not exist on the drawing. Replaced: Surface roughness by Tolerances of form and position. 3.2 Surface roughness ISO 7913 The mentioned ISO 7913 has following title: Aerospace Bolts and screws, metric Tolerances of form and position. Add a new table sub
42、clause 6.1: Recess removal torque test following ISO 9152 except torque to be applied per table below: ISO 9152: The recess removal torque unscrewing was not adapted to this type of driver particularly for code 8-10-12.Recess number Removal torque (Nm) 3 1,15 3,5 3 4 4,6 5 5,7 6 16,4 8 26 10 49 12 1
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