1、BSI Standards PublicationBS EN 4072:2016Aerospace series Screws,100 countersunk normalhead, offset cruciform recess,close tolerance shank, shortthread in titanium alloy,aluminium IVD coated Classification: 1100 MPa (atambient temperature) / 425 CBS EN 4072:2016 BRITISH STANDARDNational forewordThis
2、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 Itsupersedes BS EN 4072:2009 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can beobtaine
3、d 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 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 90779 1ICS 49.030.20Compliance with a B
4、ritish 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 issued since publicationDate Text affectedBS EN 4072:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
5、 4072 March 2016 ICS 49.030.20 Supersedes EN 4072:2009English Version Aerospace series - Screws, 100 countersunk normal 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 arospat
6、iale - Vis tte fraise 100 normale, empreinte cruciforme dporte, ft tolrance serre, filetage court, en alliage de titane, revtues aluminium IVD - Classification: 1 100 MPa ( temprature ambiente) /425 C Luft- und Raumfahrt - 100 Senkschrauben mit Flgelkreuzschlitz, kurzes Gewinde, aus Titanlegierung,
7、Aluminium IVD beschichtet - Klasse: 1 100 Mpa (bei Raumtemperatur) / 425 C This European Standard was approved by CEN 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 natio
8、nal standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards 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 vers
9、ion in any other language made by translation under the responsibility of a CEN member into its own language and notified 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, C
10、zech Republic, Denmark, Estonia, 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 United Kingdom.
11、 EUROPEAN COMMITTEE FOR STANDARDIZATION 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
12、BS EN 4072:2016EN 4072:2016 (E) 2 Contents Page 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 Eur
13、opean Foreword This document (EN 4072:2016) 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 this Association, this Standard has received the approval of the National As
14、sociations 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 endorsement, at the latest by September 2016, and conflicting national stan
15、dards shall be withdrawn at the latest by September 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
16、4072:2009. 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, Estonia, Finland, Former Yugoslav Republic of Macedonia,
17、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 4072:2016 (E) 4 1 Scope This standard specifies the charac
18、teristics 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 or in part, are normatively referenced in this docu
19、ment 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 aerospace products EN 4016, Aerospace series Oversized
20、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 Qualification procedure for aerospace standard parts ISO 3
21、353-1, 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 or unribbed drive, normal shank, short or medium len
22、gth 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 alloys, strength class 1 100 MPa Procurement specifi
23、cation 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 purity 1)Minimum tensile strength of the material at amb
24、ient 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 4072:2016 (E) 5 3 Required characteristics 3.1 Config
25、uration 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 Tolerances of form and position ISO 7913. 3.3 Materials
26、 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 conversion coating within 24 h max.3); optional lubrica
27、tion 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 Conforms to ISO 3353-1 Figure 1 3) Products used sha
28、ll 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 MJ40,7 4h6h 4 0,010 0,035 8 7,2 5,78 3,0 1,1 0,08 0,
29、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 4h6h 12 0,016 0,041 24 22,8 18,00 9,8 2,53 140 MJ141
30、,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. Tol. ef030 0,3 1,27 003 to 030 3 to 30 6,0 0,4 0 0
31、,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 7,5 4,39 0,23 100 4,23 008 to 100 8 to 100 14,5 9,0
32、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 to 200 12 to 200 24,5 15,0 64,41 1,40 aIn accordanc
33、e 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 corresponds to the length L1, completed by one or two zero
34、s 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 for each additional millimetre of L4. BS EN 4072:20
35、16EN 4072:2016 (E) 8 4 Designation EXAMPLE 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 code (see 0) NOTE If necessary, the code I9005 shall be pl
36、aced 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. Table 4 Diameter code EN 2424 Style 030 and 040 N 050 to 200 C + MJ BS EN 4072:2016EN 4072:2016 (E) 9 6 Techni
37、cal 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 26 10 49 12 119 6.2 Approval of manufacturers EN 9100. 6.3 Qual
38、ification 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 by ISO 14275 and ISO 14276 Replaced MIL-C-83488C by MIL-DTL-8348
39、8 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 1302. Remove 1,6 above the drawing. Ra 1,6 does not exist on the
40、 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 subclause 6.1: Recess removal torque test following ISO 9152 except
41、 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 12 119 This page deliberately left blankBSI is the national body res
42、ponsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited.British Standards Institution (BSI)BSI Group Headquarters389 C
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