1、BRITISH STANDARD Plain washers -Large series - Part 1: Product grade A The European Standard EN IS0 7093-1:2000 has the status of a British Standard ICs 21.060.30 BS EN IS0 7093-1:ZOOO Incorporating Corrigendum No. 1 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN IS0 70
2、93-1:2000 Amd. No. Corrigendum 13151 National foreword Date Comments May 2001 Indicated by a sideline This British Standard is the official English language version of EN IS0 7093-1:2000. It is identical with IS0 7093-1:2000, including corrigendum February 2001. The UK participation in its preparati
3、on was entrusted to Technical Committee FME/9, Bolts, nuts and accessories (+QA present to the responsible internationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and pr
4、omulgate them in the UK. - A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international pblications with th
5、eir corresponding European publications. The British Standards 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 Elect
6、ronic Catalogue. A British Standard does not purport to 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 do
7、cument comprises a front cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 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 his Briti
8、sh Standard, having document Was last issued. 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 Amendments issued since publication O BSI 05-2001 I I ISBN O 580 36358 9 EUROPEA
9、N STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 7093-1 June 2000 English version Plain washers - Large series - Part 1 : Product grade A (IS0 7093-1 12000) Rondelles plates - Srie large - Partie 1: Grade A (IS0 7093-1 2000) Flache Scheiben - Groe Reihe - Teil 1: Produktklasse A (IS0 7093-1:2000) T
10、his European Standard was approved by CEN on 1 June 2000. 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 referenc
11、es concerning such national standards 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
12、its own language and notified to 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, Spai
13、n, Sweden, Switzerland and United Kingdom. EUROPEAN COMMiTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMITE EUROPEEN DE NORMALISATION 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 nati
14、onal Members. Ref. No. EN IS0 7093-1 :2000 E EN IS0 7093-1:2000 Foreword The text of the International Standard IS0 7093-1 :2000 has been prepared by Technical Committee ISOKC 2 “Fasteners“ in collaboration with Technical Committee CENTTC 185 “Threaded and non-threaded mechanical fasteners and acces
15、sories“, the secretariat of which is held 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 200
16、0. According to the CENKENELEC Internal 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, P
17、ortugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 7093-1:2000 was approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). INTERNA
18、TIONAL STANDARD EN IS0 7093-1:2000 IS0 7093-1 First edition 2000-06-01 Corrected and reprinted 2001 -02-01 Plain washers - Large series - Part 1: Product grade A Rondelles plates - Serie large - Partie 1: Grade A Reference number IS0 7093-1 :2000(E) o IS0 2000 EN IS0 7093-1:2000 Foreword IS0 (the In
19、ternational Organization for Standardization) is a worldwide federation of national 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 h
20、as been established has the right to be represented on that committee. International 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
21、 standardization. International 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
22、at least 75 Oh of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of IS0 7093 may be the subject of patent rights. IS0 shall not be held responsible for identifying any or all such patent rights. International Standard IS0 7093-1 was pre
23、pared by Technical Committee ISOTTC 2, Fasteners. This first edition of IS0 7093-1, together with IS0 7093-2, cancels and replaces IS0 7093:1983, which has been technically revised. IS0 7093 consists of the following parts, under the general title Plain washers - Large series: - Part 7: Product grad
24、e A - Part 2: Product grade C iii - EN IS0 7093-1:2000 Plain washers - Large series - Part 1: Product grade A 1 Scope I This part of IS0 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 thread di
25、ameters) ranging from 3 mm to 36 mm inclusive. Washers conforming to this part of IS0 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 thickness s
26、hould 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 stee
27、l of similar chemical composition; - case-hardened thread rolling screws. O 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 incl
28、uding 10. If dimensions other than those listed in this part of IS0 7093 are required, they should be selected from those given in IS0 887. 1 EN IS0 7093-1:2000 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of
29、 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 normati
30、ve documents 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:-l), Plain washers for metric bolts, screws and nuts for general purposes - General pl
31、an. IS0 3269:2000, fasteners - Acceptance inspection. IS0 3506- 1 : 1 997, Mechanical properties of corrosion-resistant stainless-steel fasteners - Part 1: Bolts, screws and studs. IS0 4042:1999, Fasteners - Electroplated coatings. O IS0 4759-3:2000, Tolerances for fasteners - Part 3: Plain washers
32、for bolts, screws and nuts - Product grades A and C. IS0 6507-1 :1997, Metallic materials - Vickers hardness test - Part 1: Test method. IS0 10683:-*), Fasteners - Non-electrolically applied zinc flake coatings. 3 Dimensions See Figure 1 and Tables 1 and 2. Dimensions in millimetres, surface roughne
33、ss values in micrometres Figure 1 - Dimensions 1) To be published. (Revision of IS0 887:1983) 2) To be published. Nominal size Clearance hole Outside diameter dl d2 (Nominal thread nom. max. nom. min. 3 3,20 3,3a 9,oo 8,64 4 4,30 4,4a 12,oo 11,57 5 5,30 5,4a 15,OO 14,57 6 6,40 6,62 i a,oo 17,57 8 8,
34、40 8,62 24,OO 23,4a 10 10,50 10,77 30,OO 29,48 12 13,OO 13,27 37,OO 36,3a 20 21 ,o0 21,33 60,OO 59,26 24 25,OO 25,52 72,O 70,8 30 33,OO 33,62 92,O 90,6 36 39,OO 39,62 110,o 108,6 (ma.) diameter, d) (min.) 16 17,OO 17,27 50,OO 49,38 O Table 2 - Non-preferred dimensions Dimensions in millimetres Thick
35、ness h nom. max. min. 0,8 0,9 0,7 1 191 03 1 1,1 03 1,6 183 1,4 2 22 1,8 2,s 2,7 23 3 3,3 2,7 4 4,3 3,7 5 596 484 6 6,6 5,4 8 9 7 3 3,3 2,7 Nominal size (Nominal thread diameter, d) 375 18 22 27 33 14 3 Clearance hole Outside diameter Thickness dl d2 h nom. max. nom. min. nom. max. min. (min.) 3,70
36、3,88 11 ,o0 10,57 0,8 039 0,7 19,oo 19,33 56,OO 55,26 4 4,3 3,7 23,OO 23,52 66,O 64,8 5 56 4,4 30,OO 30,52 85,O 83,6 6 6,6 54 36,OO 36,62 105,O 103,6 6 6,6 5,4 (ma.) 15,OO 15,27 44,OO 43,38 3 3,3 2,7 EN IS0 7093-1:2000 200 HV 300 HVC 4 See Table 3. Requirements and International Standards of referen
37、ce A2 FI CI A4 c4 IS0 3506-1 200 HV Table 3 - Specifications and International Standards of reference 200 HV to 300 HV Material a 300 HV 200 HV to to 370 HV 300 HV Gradeb International Standard Mechanical Hardness properties class _ _ Hardness ranged Tolerances Product grade International Standard S
38、urface finish Workmanship Acceptability Steel I Stainless steel IS0 4759-3 Plain: .e. washers to be supplied in natural finish, 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-ele
39、ctrolytically applied zinc flake coatings covered in IS0 10683. For hardened and tempered washers, appropriate plating or coating processes should be employed to avoid hydrogen embrittlement. When washers are electroplated or phosphated, they shall be suitably treated immediately after plating or co
40、ating to obviate detrimental hydrogen embrittlement. All tolerances shall apply prior to the application of a plating or coating. Parts shall be free of irregularities or detrimental defects. No protruding burrs shall appear on the washer. Acceptance procedure covered in IS0 3269. Plain: .e. washers
41、 shall be supplied in natural finish. a Other metallic materials as agreed between customer and supplier. Related to chemical composition only. Hardened and tempered. Hardness testing according to IS0 6507-1. Test force: HV 1 O for nominal thickness 0,6 e h 1,2 mm. EN IS0 7093-1:2000 0 5 Designation
42、 EXAMPLE 1 is designated as follows: A large-series, product-grade-A plain washer made of steel, of nominal size 8 rnm and hardness class 200 HV Washer IS0 7093-1-8-200 HV EXAMPLE 2 hardness class 200 HV is designated as follows: A large-series, product-grade-A plain washer made of grade A2 stainles
43、s steel, of nominal size 8 mm and Washer IC0 7093-1 -8-200 HV-A2 5 EN IS0 7093-1:2000 Annex ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publication
44、s. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For
45、 undated references the latest edition of the publication referred to applies. Publication Year IS0 3506-1 1997 IS0 4042 1999 IS0 4759-3 2000 IS0 6507-1 1997 Title EN Year Mechanical properties of corrosion-resistant stainless-steel EN IS0 3506-1 1997 fasteners - Part 1: Bolts, screws and studs Fast
46、eners - Electroplated coatings EN IS0 4042 1999 Tolerances for fasteners - Part 3: Plain washers for bolts, EN IS0 4759-3 2000 screws and nuts - Products grades A and C Metallic materials - Vickers hardness test - Part 1 : EN IS0 6507-1 1997 Test method BS EN IS0 7093-1:ZOOO BSI 389 Chiswick High Ro
47、ad London w4 4AL BSI - British Standards Institution 3SI is the independent national body responsible for preparing O British Standards. It presents the UK view on standards in Europe and at the nternational level. It is incorporated by Royal Charter. Revisions British Standards are updated by amend
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