EN 3782-2008 en Aerospace series - Holes for 100 ountersunk head screws - Design standard《航空航天系列 100埋头螺丝安装孔 设计标准》.pdf

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1、BRITISH STANDARDBS EN 3782:2008Aerospace series Holes for 100 countersunk head screws Design standardICS 49.030.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43

2、g55g3g47g36g58BS EN 3782:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2008 BSI 2008ISBN 978 0 580 60518 5National forewordThis British Standard is the UK implementation of EN 3782:2008. The UK participation in its preparation w

3、as entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for i

4、ts correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3782 May 2008 ICS 49.030.01 English Version Aerospace series - Holes for 100 counter

5、sunk head screws - Design standard Srie arospatiale - Trous pour vis tte fraise 100 - Norme de conception Luft- und Raumfahrt - Lcher fr 100 -Senkschrauben - Konstruktionsnorm This European Standard was approved by CEN on 3 November 2007. CEN members are bound to comply with the CEN/CENELEC Internal

6、 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 standards may be obtained on application to the CEN Management Centre or to any CEN member.

7、 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 the CEN Management Centre has the same status as the official versions. CEN members

8、are the national standards bodies of 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, Swit

9、zerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. N

10、o. EN 3782:2008: E2 Contents Page Foreword3 1 Scope 4 2 Use 4 2.1 Normal application.4 2.2 Aerodynamic application 4 3 Required characteristics.4 4 Designation 6 5 Indication in drawings.6 Figures Figure 1 Countersunk holes in common parts 4 Figure 2 Countersunk holes in sheet metal . 5 Figure 3 Ind

11、ication in drawings . 6 Tables Table 1 Hole sizes for normal application (underflush condition). 5 Table 2 Hole sizes for aerodynamic application (proud to underflush condition). 5 BS EN 3782:20083 Foreword This document (EN 3782:2008) has been prepared by the Aerospace and Defence Industries Associ

12、ation 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

13、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 November 2008, and conflicting national standards shall be withdrawn at the latest by November 2008. Attention is drawn to the possibility that some of t

14、he 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 organizations of the following countries are bound to implement

15、this European Standard: 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 t

16、he United Kingdom. BS EN 3782:20084 1 Scope This standard specifies holes in common parts and sheet metal for 100 countersunk head screws with nominal diameters of 3 mm to 5 mm and head configuration according to EN standards for aerospace applications. 2 Use 2.1 Normal application Underflush condit

17、ion, i. e. where units are mounted on top of the screws, use dimensions P1(see Table 1). 2.2 Aerodynamic application Proud to underflush condition i.e. where the screws are adjacent to gaseous flow, use dimensions P2(see Table 2). 3 Required characteristics See Figures 1 and 2 and Tables 1 and 2. Di

18、mensions in millimetres adeburred 0,1 to 0,5 bP1underflush condition P2proud to underflush condition Figure 1 Countersunk holes in common parts BS EN 3782:20085 Dimensions in millimetres adeburred 0,1 to 0,5 bP1underflush condition P2proud to underflush condition Figure 2 Countersunk holes in sheet

19、metal Table 1 Hole sizes for normal application (underflush condition) Screw thread Hole diameter D Sinking diameter Ea Gauge diameter G Depth HaP10,10 to 0,38 underflush mm mm mm mm mm diameter code designation tol. H13 N030 MJ3 0,5 4h 6h 3,3 + 0,18 6,2 4,50 1,2 0,73 + 0,2 N040 MJ4 0,7 4h 6h 4,4 +

20、0,18 8,2 5,78 1,6 1,03 + 0,2 N050 MJ5 0,8 4h 6h 5,5 + 0,18 10,2 7,71 2,0 1,06 + 0,2 aFor information only. Table 2 Hole sizes for aerodynamic application (proud to underflush condition) Screw thread Hole diameter D Sinking diameter Ea Gauge diameter G Depth HaP20,10 proud to 0,13underflush mm mm mm

21、mm mm diameter code designation tol. H13 A030 MJ3 0,5 4h 6h 3,3 + 0,18 5,75 4,50 1,0 0,53 + 0,15 A040 MJ4 0,7 4h 6h 4,4 + 0,18 7,75 5,78 1,4 0,83 + 0,15 A050 MJ5 0,8 4h 6h 5,5 + 0,18 9,75 7,71 1.8 0,86 + 0,15 aFor information only. BS EN 3782:20086 4 Designation EXAMPLE Description block Identity bl

22、ock Hole EN 3782 N050 Number of EN standard Diameter code (see Table 1 or Table 2) 5 Indication in drawings EXAMPLE aHole EN 3782-N050 Figure 3 Indication in drawings Alternatively the hole may be fully dimensioned in the drawing. BS EN 3782:2008blankBS EN 3782:2008BSI Group Headquarters389 Chiswick

23、 High Road,London W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards Institute (BSI)BSI 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 by Royal Charter.Revisio

24、nsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambigui

25、ty while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000 Fax: +44 (0)20 8996 7400BSI offers members an individual updating service called PLUS which ensures that subs

26、cribers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001 Email: You may also buy directly using a debit/credit card f

27、rom the BSI Shop on the Website http:/ response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, Eu

28、ropean and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Em

29、ail: Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: Information regard

30、ing online access to British Standards via British Standards Online can be found at http:/ information about BSI is available on the BSI website at http:/.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardiz

31、ation bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude

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