1、Plain washers - Extra large series Product grade C IEN IS0 7094 (IS0 7094 : 2000) English version of DIN EN IS0 7094 DIN - ICs 21.060.30 Supersedes parts of DIN 440, May 1990 edition. Flache Scheiben - Extra groe Reihe - Produktklasse C (IS0 7094 : 2000) European Standard EN IS0 7094 : 2000 has the
2、status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been published in accordance with a decision taken by CEN/TC 185 Threaded and non- threaded mechanical fasteners and accessories to adopt, without alteration, International Standard IS0 7094 as a Eur
3、opean Standard. The responsible German body involved in its preparation was the Normenausschuss Mechanische Verbin- dungselemente (Fasteners Standards Committee), Technical Committee Scheiben und Ringe. The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN
4、are as follows: IS0 Standard DIN Standard IS0 887 IS0 3269 IS0 4042 DIN EN IS0 887 DIN EN IS0 3269 DIN EN IS0 4042 IS0 4759-3 IS0 6507-1 DIN EN IS0 4759-3 DIN EN IS0 6507-1 IS0 10683 DIN EN IS0 10683*) Amendments DIN 440, May 1990 edition, has been superseded by the specifications of EN IS0 7094, Ju
5、ne 2000 edition, which is identical to IS0 7094. Previous editions DIN 440: 1936-1 O, 1943-05, 1974-07, 1990-05. *) Currently at draft stage. Continued overleaf. EN comprises 6 pages. No part of this standard may be reproduced without the prior permission of Ref. No. DIN EN IS0 7094 : 2000-12 IN Deu
6、tsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, as the exclusive right of sale for German Standards (DIN-Normen). English price group O7 Sales No. 1107 04.01 Page 2 DIN EN IS0 7094 : 2000-1 2 National Annex NA Standards referred to (and not included in Normative r
7、eferences and Annex ZA) DIN EN IS0 887 Plain washers for metric bolts, screws and nuts for general purposes - General plan (IS0 887 : 2000) DIN EN IS0 3269 Fasteners - Acceptance inspection (IS0 3269 : 2000) DIN EN IS0 4042 Fasteners - Electroplated coatings (IS0 4042 : 1999) DIN EN IS0 4759-3 Toler
8、ances for fasteners - Part 3: Plain washers for bolts, screws and nuts - Product grades A and C (IS0 4759-3 : 2000) DIN EN IS0 6507-1 Metallic materials - Vickers hardness test - Part 1 : Test method (IS0 6507-1 : 1997) DIN EN IS0 10683 Fasteners - Non-electrolytically applied zinc flake coatings (I
9、SO/DIS 10683 : 1999)*) *) Currently at draft stage. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 7094 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
10、 - Extra groe Reihe - Produktklasse C (IS0 7094 : 2000) This European Standard was approved by CEN on 2000-06-01. 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 al
11、teration. Up-to-date lists and bibliographical references concerning such national stand- ards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by tr
12、anslation under the responsibility of a CEN member into 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, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ir
13、eland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 2000. CEN - All rights
14、of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN IS0 7094 : 2000 E Page 2 EN IS0 7094 : 2000 Foreword International Standard IS0 7094 : 2000 which was prepared by ISO/TC 2 Fasteners of the International Organization for Standardization, has been a
15、dopted by Technical Committee CEN/TC 185 Threaded and non-threaded mechanical fasteners and acces- sories, the Secretariat of which is held by DIN, as a European Standard. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endors
16、ement, and conflicting national standards withdrawn, by December 2000 at the latest. In accordance with the CENKENELEC Internal Regulations, the national standards organizations of the follow- ing countries are bound to implement this European Standard: Austria, Belgium, the Czech Republic, Denmark,
17、 Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Plain washers - Extra large series - Product grade C, Endorsement notice The text of the International Standard IS0 7094 : 2000 was approved
18、by CEN as a European Standard without any modification. NOTE: Normative references to international publications are listed in Annex ZA (normative). Page 3 EN IS0 7094 : 2000 1 Scope This International Standard specifies the characteristics of extra-large-series, product-grade4 plain washers in the
19、100 HV hardness class, of nominal sizes (nominal thread diameters) ranging from 5 rnm to 36 rnm 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 inclu
20、ding 6 used in timber 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 prov
21、isions 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 th
22、e normative 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:-), Plain washers for metric bolts, screws and nuts for general purposes - Ge
23、neral plan. IS0 3269:2000, Fasteners - Acceptance inspection. IS0 40421 999, Fasteners - Electroplated coatings. !SO 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
24、7: Test method. IS0 1 0683:-*), Fasteners - Non-electrolytically applied zinc flake coatings. 1 ) To be published. (Revision of IS0 887:1983) 2) To be published. Page 4 EN IS0 7094 : 2000 Nominal size Clearance hole Outside diameter (Nominal 1 (12 thread nom. max. nom min. diameter, ti) (min,) (rnax
25、) 5 5,5 5.8 18,O 16,9 6 6,60 6,96 22,o 20,7 8 9,00 9,36 28,O 26,7 10 11 ,o0 11.43 34,O 32,4 12 13,50 13.93 44,O 42,4 16 17,5 18,2 56,O 54,l 3 Dimensions Thickness Il nom. max. min 2 2,3 1,7 2 2,3 1,7 3 36 2-4 3 3,6 2,4 4 4,6 3,4 5 6 4 See Figure 1 and Tables 1 and 2. 20 24 30 36 Figure 1 - Dimensio
26、ns 22,oo 22.84 72,O 70,l 6 7 5 26,OO 26,84 85,O 82,8 6 7 5 33 34 105,O 102,8 6 7 5 39 40 125.0 122,5 8 92 6,8 Table 1 - Preferred dimensions Dimensions in millimetres Nominal size Clearance hole Outside diameter (Nominal dl (12 thread nom. max. nom. min. diameter, d) (min.) (rnax.) 14 15,50 15,93 50
27、O 48,i 18 20,oo 20,43 60,O 58,i 22 24,OO 24,84 80,O 78,i 27 30,OO 30,84 98,O 95,8 33 36 37 115,O 112,8 Thickness Il nom. max. min. 4 4,6 3,4 5 6 4 6 7 4 6 7 5 8 9,2 63 Page 5 EN IS0 7094 : 2000 4 Requirements and International Standards of reference See Table 3. Table 3 - Specifications and Interna
28、tional Standards of reference Materiala Hardness class Hardness range Mechanical properties Product grade International Standard Tolerances Surface finish Workmanship Acceptability Steel 100 HV 1 O0 HV to 200 HV C IS0 4759-3 Plain: .e. washers to be supplied in natural finish, treated with a protect
29、ive 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 plating or coating. Parts sha
30、ll 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 /I 1,2 mrn. Acceptance procedure covered in IS0 32
31、69. 5 Designation EXAMPLE 1 O0 HV is designated as follows: An extra-large-series, product-grade-C plain washer made of steel, of nominal size 8 mrn and hardness class Washer IS0 7094-8-100 HV Page 6 EN IS0 7094 : 2000 Annex ZA (normative) Normative references to international publications with thei
32、r 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, subsequent amendments to
33、 or revisions of any of these publications apply to thisfuropean Standardilnlywhen incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Publication Year Title IS0 4042 1999 Fasteners - Electroplated 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
