1、BRITISH STANDARD BS EN ISO 7093-1:2000 Incorporating Corrigendum No. 1 Plain washers Large series Part 1: Product grade A The European Standard EN ISO 7093-1:2000 has the status of a British Standard ICS 21.060.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN ISO 7093-1
2、:2000 his British Standard, having been prepared under the direction of theEngineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 September 2001 BSI 05-2001 ISBN 0 580 36358 9 National foreword This British Standard is the official Engl
3、ish language version of EN ISO 7093-1:2000. It is identical with ISO 7093-1:2000, including corrigendum February 2001. The UK participation in its preparation was entrusted to Technical Committee FME/9, Bolts, nuts and accessories (+QA present to the responsible international/European committee any
4、enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO forewo
5、rd page, the ISO page, pages ii and iii, a blank page, pages 1 to 5, the annex ZA page, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Corrigendum 13151 M
6、ay 2001 Indicated by a sidelineEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO70931 June2000 ICS21.060.30 Englishversion PlainwashersLargeseriesPart1:ProductgradeA(ISO 70931:2000) RondellesplatesSrielargePartie1:GradeA(ISO 70931:2000) FlacheScheibenGroeReiheTeil1:ProduktklasseA (ISO70931:2000)
7、ThisEuropeanStandardwasapprovedbyCENon1June2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeob
8、tainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versi
9、ons. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEE
10、FRNORMUNG CentralSecretariat:ruedeStassart,36B1050Brussels 2000CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO70931:2000EForeword ThetextoftheInternationalStandardISO70931:2000hasbeenpreparedbyTechnicalCommittee ISO/TC2“Fasteners“incollaboration
11、withTechnicalCommitteeCEN/TC185“Threadedand nonthreadedmechanicalfastenersandaccessories“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofan identicaltextorbyendorsement,atthelatestbyDecember2000,andconflictingnationalstandards shal
12、lbewithdrawnatthelatestbyDecember2000. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof the followingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic, Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norw
13、ay, Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom. Endorsementnotice ThetextoftheInternationalStandardISO70931:2000wasapprovedbyCENasaEuropean Standardwithoutanymodification. NOTE:NormativereferencestoInternationalStandardsarelistedinannexZA(normative). ENISO70931:2000Reference number ISO 709
14、3-1:2000(E) ISO 2000 INTERNATIONAL STANDARD ISO 7093-1 First edition 2000-06-01 Corrected and reprinted 2001-02-01 Plain washers Large series Part 1: Product grade A Rondelles plates Srie large Partie 1: Grade A ENISO70931:2000ii ENISO70931:2000 iii Foreword ISO (the International Organization for S
15、tandardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the ri
16、ght to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Internationa
17、l Standards are drafted in accordance with the rules given in the ISO/IEC 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 bo
18、dies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 7093 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 7093-1 was prepared by Technical Committee IS
19、O/TC 2, Fasteners. This first edition of ISO 7093-1, together with ISO 7093-2, cancels and replaces ISO 7093:1983, which has been technically revised. ISO 7093 consists of the following parts, under the general title Plain washers Large series: Part 1: Product grade A Part 2: Product grade C ENISO70
20、931:2000ENISO70931:2000INTENRATIONAL TSANDADR ISO -39071:(0002)E1 Plain washers Large series Part 1: Product grade A 1 Scope This part of ISO 7093 specifies the characteristics of large-series, product-grade-A plain washers in the 200 HV and 300 HV hardness classes and of nominal sizes (nominal thre
21、ad diameters) ranging from 3 mm to 36 mm inclusive. Washers conforming to this part of ISO 7093 are intended for use in cases where soft material pieces are to be clamped or where there are large clearance holes in the workpiece. Nevertheless, in the latter case, the suitability of the washer thickn
22、ess should be checked. Washers of hardness class 200 HV are suitable for hexagon bolts and screws of product grades A and B in property classes up to and including 8.8; hexagon nuts of product grades A and B in property classes up to and including 8; hexagon bolts, screws and nuts of stainless steel
23、 of similar chemical composition; case-hardened thread rolling screws. Washers of hardness class 300 HV are suitable for hexagon bolts and screws of product grades A and B in property classes up to and including 10.9; hexagon nuts of product grades A and B in property classes up to and including 10.
24、 If dimensions other than those listed in this part of ISO 7093 are required, they should be selected from those given in ISO 887. ENISO70931:2000ISO -39071:(0002)E 2 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisi
25、ons of this International 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 n
26、ormative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 887: 1) , Plain washers for metric bolts, screws and nuts for general purposes Gener
27、al plan. ISO 3269:2000, Fasteners Acceptance inspection. ISO 3506-1:1997, Mechanical properties of corrosion-resistant stainless-steel fasteners Part 1: Bolts, screws and studs. ISO 4042:1999, Fasteners Electroplated coatings. ISO 4759-3:2000, Tolerances for fasteners Part 3: Plain washers for bolts
28、, screws and nuts Product grades A and C. ISO 6507-1:1997, Metallic materials Vickers hardness test Part 1: Test method. ISO 10683: 2) , Fasteners Non-electrolytically applied zinc flake coatings. 3 Dimensions See Figure 1 and Tables 1 and 2. Dimensions in millimetres, surface roughness values in mi
29、crometres Figure 1 Dimensions 1) To be published. (Revision of ISO 887:1983) 2) To be published. ENISO70931:2000ISO -39071:(0002)E3 Table 1 Preferred dimensions Dimensions in millimetres Nominal size Clearance hole Outside diameter Thickness d 1 d 2 h nom. max. nom. min. nom. max. min. (Nominal thre
30、ad diameter, d) (min.) (max.) 3 3,20 3,38 9,00 8,64 0,8 0,9 0,7 4 4,30 4,48 12,00 11,57 1 1,1 0,9 5 5,30 5,48 15,00 14,57 1 1,1 0,9 6 6,40 6,62 18,00 17,57 1,6 1,8 1,4 8 8,40 8,62 24,00 23,48 2 2,2 1,8 10 10,50 10,77 30,00 29,48 2,5 2,7 2,3 12 13,00 13,27 37,00 36,38 3 3,3 2,7 16 17,00 17,27 50,00 4
31、9,38 3 3,3 2,7 20 21,00 21,33 60,00 59,26 4 4,3 3,7 24 25,00 25,52 72,0 70,8 5 5,6 4,4 30 33,00 33,62 92,0 90,6 6 6,6 5,4 36 39,00 39,62 110,0 108,6 8 9 7 Table 2 Non-preferred dimensions Dimensions in millimetres Nominal size Clearance hole Outside diameter Thickness d 1 d 2 h nom. max. nom. min. n
32、om. max. min. (Nominal thread diameter, d) (min.) (max.) 3,5 3,70 3,88 11,00 10,57 0,8 0,9 0,7 14 15,00 15,27 44,00 43,38 3 3,3 2,7 18 19,00 19,33 56,00 55,26 4 4,3 3,7 22 23,00 23,52 66,0 64,8 5 5,6 4,4 27 30,00 30,52 85,0 83,6 6 6,6 5,4 33 36,00 36,62 105,0 103,6 6 6,6 5,4 ENISO70931:2000ISO -3907
33、1:(0002)E 4 4 Requirements and International Standards of reference See Table 3. Table 3 Specifications and International Standards of reference Material a Steel Stainless steel A2 F1 C1 Grade b A4 C4 International Standard ISO 3506-1 Mechanical properties Hardness class 200 HV 300 HV c 200 HV Hardn
34、ess range d 200 HV to 300 HV 300 HV to 370 HV 200 HV to 300 HV Tolerances Product grade A International Standard ISO 4759-3 Surface finish Plain: i.e. washers to be supplied in natural finish, treated with a protective lubricant or with other coatings as agreed by customer and supplier. Requirements
35、 for electroplating covered in ISO 4042. Requirements for non-electrolytically applied zinc flake coatings covered in ISO 10683. For hardened and tempered washers, appropriate plating or coating processes should be employed to avoid hydrogen embrittlement. When washers are electroplated or phosphate
36、d, they shall be suitably treated immediately after plating or coating to obviate detrimental hydrogen embrittlement. All tolerances shall apply prior to the application of a plating or coating. Plain: i.e. washers shall be supplied in natural finish. Workmanship Parts shall be free of irregularitie
37、s or detrimental defects. No protruding burrs shall appear on the washer. Acceptability Acceptance procedure covered in ISO 3269. a Other metallic materials as agreed between customer and supplier. b Related to chemical composition only. c Hardened and tempered. d Hardness testing according to ISO 6
38、507-1. Test force: HV 10 for nominal thickness 0,6 1,2 mm. ENISO70931:2000ISO -39071:(0002)E5 5 Designation EXAMPLE 1 A large-series, product-grade-A plain washer made of steel, of nominal size 8 mm and hardness class 200 HV is designated as follows: Washer ISO 7093-1-8-200 HV EXAMPLE 2 A large-seri
39、es, product-grade-A plain washer made of grade A2 stainless steel, of nominal size 8 mm and hardness class 200 HV is designated as follows: Washer ISO 7093-1-8-200 HV-A2 ENISO70931:2000AnnexZA (normative) Normativereferencestointernationalpublications withtheirrelevantEuropeanpublications ThisEurope
40、anStandardincorporatesbydatedorundatedreference,provisionsfromother publications.Thesenormativereferencesarecitedattheappropriateplacesinthetextandthe publicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsof anyofthesepublicationsapplytothisEuropeanStandardonlywhenincorp
41、oratedinitby amendmentorrevision.Forundatedreferencesthelatesteditionofthepublicationreferredto applies. Publication Year Title EN Year ISO35061 1997 Mechanicalpropertiesofcorrosionresistantstainlesssteel ENISO35061 1997 fastenersPart1:Bolts,screwsandstuds ISO4042 1999 FastenersElectroplatedcoatings
42、 ENISO4042 1999 ISO47593 2000 TolerancesforfastenersPart3:Plainwashersforbolts, ENISO47593 2000 screwsandnutsProductsgradesAandC ISO65071 1997 MetallicmaterialsVickershardnesstestPart1: ENISO65071 1997 Testmethod ENISO70931:2000BS EN ISO 7093-1:2000 BSI 389 Chiswick High Road London W4 4AL BSI Briti
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