1、BRITISH STANDARD Plain washers - Extra large series - Product grade C The European Standard EN IS0 70942000 has the status of a British Standard ICs 21.060.30 BS EN IS0 7094:2000 .mmorating rechnkcd 7orrigendum No. 1 NO COPYING WITBOUT BSI PERMISSION EXCEPT As PERMITED BY COPRIGE LAW BS EN IS0 70942
2、000 direction of the Engineering Amd. No. Sector Committee, was published under the authority of the Standards Committee and comes Technical into effect on 15 September 2000 Com. 13077 National foreword Date Comments July 2001 Correction to Table 2 This British Standard is the official English langu
3、age version of EN IS0 7094:2000. It is identical with IS0 70942000, including technical corrigendum December 2000. The UK participation in its preparation was entrusted by Technical Committee FME9, Bolts, nuts and accessories (+QA - present to the responsible European committee any enquiries on the
4、- monitor related international and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK. A iist of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Sta
5、ndards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index“, or by using the “Find“ facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to
6、 include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, th
7、e EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii and iii, a blank page, pages 1 to 3, the annex ZA page, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. EUROPEAN STANDARD EN IS0 7094 NO
8、RME EUROPENNE EUROPISCHE NORM June 2000 ICs 21.060.30 English version Plain washers - Extra large series - Product grade C (IS0 7094:2000) Rondelles plates - Srie trs large - Grade C (IS0 7094:2000) Flache Scheiben - Extra groe Reihe - Produktklasse C (IS0 70942000) This European Standard was approv
9、ed by CEN on 1 June 2000. CEN members are bound to comply with the CENKENELEC 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
10、ards may be obtained on application to the Central Secretariat 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 notified to
11、the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal, Spain, Sweden, Switzerland and United
12、 Kingdom. O EUROPEAN COMMEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FUR NORMUNG Central Secretariat: rue de Stassart, 36 8-1050 Brussels O 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 70
13、94:2000 E EN IS0 7094:2000 Foreword The text of the International Standard IS0 7094:2000 has been prepared by Technical Committee ISOTTC 2 “Fasteners“ in collaboration with Technical Committee CENTTC 185 “Threaded and non-threaded mechanical fasteners and accessories“, the secretariat of which is he
14、ld by DIN. 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 December 2000, and conflicting national standards shall be withdrawn at the latest by December 2000. According to the CENKENELEC Internal
15、 Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
16、 the United Kingdom. Endorsement notice The text of the International Standard IS0 7094:2000 was approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). INTERNATIONAL STANDARD EN IS0 7094:ZOOO IS0 7094
17、 Second edition Corrected 2000-1 2-01 2000-06-01 Plain washers - Extra large series - Product grade C Rondelles plates - Serie tres large - Grade C Reference number IS0 7094:2000(E) EN IS0 7094:2000 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of nation
18、al standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. Internatio
19、nal organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rule
20、s given in the ISOAEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possi
21、bility that some of the elements of this International Standard may be the subject of patent rights. IS0 shall not be held responsible for identifying any or all such patent rights. International Standard IS0 7094 was prepared by Technical Committee ISO/TC 2, Fasteners. This second edition cancels a
22、nd replaces the first edition (IS0 7094:1983), which has been technically revised. iii EN IS0 7094:2000 Plain washers - Extra large series - Product grade C 1 Scope This International Standard specifies the characteristics of extra-large-series, product-grade4 plain washers in the 100 HV hardness cl
23、ass, of nominal sizes (nominal thread diameters) ranging from 5 mm to 36 mm inclusive. These washers are suitable for - hexagon bolts and screws of product grade C in property classes up to and including 6.8, and - hexagon nuts of product grade C in property classes up to and including 6 used in tim
24、ber structures. If dimensions other than those listed in this International Standard are required, they should be selected from those given in IS0 887. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this Int
25、ernational Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative docume
26、nts indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IS0 and IEC maintain registers of currently valid International Standards. IS0 887:-), Plain washers for metric bolts, screws and nuts for general purposes - General plan. IS0 32
27、69:2000, Fasteners - Acceptance inspection. IS0 4042: 1 999, Fasteners - Electroplated coatings. IS0 4759-3:2000, Tolerances for fasteners - Part 3: Plain washers for bolts, screws and nuts - Product grades A and C. IS0 6507-1 :1997, Metallic materials - Vickers hardness test - Part 7: Test method.
28、IS0 1 0683:2), Fasteners - Non-electrolytically applied zinc flake coatings. 1) To be published. (Revision of IS0 887:1983) 0 2) To be published. 1 EN IS0 7094:2000 Nominal size Clearance hole Outside diameter Thickness I dl d2 h (Nominal thread nom. max. nom. min. nom. max. min. (ma.) diameter, d)
29、(min.) 5 5,5 58 18,O 16,9 2 23 1,7 6 6,60 6,96 22,o 20,7 2 2,3 1,7 8 9,oo 9,36 28,O 26,7 3 3,6 2,4 10 11 ,o0 1 1,43 3490 32,4 3 3,6 24 12 13,50 13,93 4490 42,4 4 46 3,4 16 17,5 18,2 56,O 54,l 5 6 4 20 22,oo 22,84 72,O 70,l 6 7 5 24 26,OO 26,84 85,O 82,8 6 7 5 30 33 34 105,O 102,8 6 7 5 36 39 40 125,
30、O 122,5 8 92 68 3 Dimensions See Figure 1 and Tables 1 and 2. I I I I I c I I I Nominal size (Nominal thread diameter, d) 14 18 22 27 33 I I Clearance hole dl nom. max. (min.) 15,50 15,93 20,oo 20,84 24,OO 24,84 30,OO 30,84 36 37 I I Outside diameter d2 nom. min. (max.) 50,O 48,l 60,O 58,l 80,O 78,l
31、 98,O 95,8 115,O 112,8 Figure 1 - Dimensions Table 1 - Preferred dimensions Thickness h nom. max. min. 4 46 3,4 5 6 4 6 7 5 6 7 5 8 92 6,8 Table 2 - Non-preferred dimensions Dimensions in millimetres 2 EN IS0 7094:2000 4 Requirements and International Standards of reference See Table 3. Table 3 - Sp
32、ecifications and International Standards of reference Material a Hardness class Hardness range Mechanical properties Product grade International Standard Tolerances Surface finish Workmanship Acceptability Steel 100 HV 100 HV to 200 HV C IS0 4759-3 Plain: .e. washers to be supplied in natural finish
33、, treated with a protective lubricant or with other coatings as agreed by customer and supplier. Requirements for electroplating covered in IS0 4042. Requirements for non-electrolytically applied zinc flake coatings covered in IS0 10683. All tolerances shall apply prior to the application of a plati
34、ng or coating. ._ Patts shall be free of irregularities or detrimental defects. No protruding burrs shall appear on the washer. a Other metallic materials as agreed between customer and supplier. Hardness testing according to IS0 6507-1. Test force: HV 30 for nominal thickness h 1,2 mm. Acceptance p
35、rocedure covered in IS0 3269. 5 Designation EXAMPLE 100 HV is designated as follows: An extra-large-series, product-grade-C plain washer made of steel, of nominal size 8 mm and hardness class Washer IC0 7094-8-1 O0 HV 3 EN IS0 7094:2000 Annex ZA (normative) Normative references to international publ
36、ications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subseq
37、uent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Publication Year Title - EN Year IS0 4042 1999 Fasteners - Electroplat
38、ed coatings EN IS0 4042 1999 IS0 4759-3 2000 Tolerances for fasteners - Part 3: Plain washers for bolts, EN IS0 4759-3 2000 screws and nuts - Products grades A and C IS0 6507-1 1997 Metallic materials - Vickers hardness test - Part 1: EN IS0 6507-1 1997 Test method BS EN IS0 70942000 BSI 389 Chiswic
39、k High Road London w4 4AL BSI - British Standards Institution 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. Revisions British Standards are updated
40、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 ambiguity while using this British San
41、dard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel 020 8996 9OOO. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the Mest edi
42、tions of standards. Buying standards Orders for all BSI, intrnationai and foreign standards publications should be addressed to Customer Services. Tel 020 8996 9001. Fax: 020 8996 7001. Standards are also available from the BSI website at http:/lwww.bsi- In response to orders for intedonal standards
43、, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested Information on standards BSI provides a wide range of infomation on national, European and internationai standards through its Library and its Technical Help to Expo
44、rters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial
45、 discounts on the purchase price of standards. For details of these and other benefits contact Membership AdmMslmh on. Tel 020 8996 7002. Fax: 020 8996 7001. Further information about BSI is available on the BSI website at http:/www.bsi-gI Copyright Copyright subsists in ail BSI publications. BSI al
46、so holds the copyright, in the UK, of the publications of the international standarchation 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, r
47、ecorduig or otherwise - without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel 020 8996 7070.
