1、Plain washers for tapping screw and washer assemblies Normal and large series - Product grade A (IS0 10669 : 1999) English version of DIN EN IS0 10669 ICs 21.060.30 DIN EN IS0 10669 - Supersedes DIN 6903, December 1990 edition. Flache Scheiben fr Kombi-Blechschrauben - Normale und groe Reihe- Produk
2、tklasse A (IS0 10669 : 1999) European Standard EN IS0 10669 : 1999 has the 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 to adopt, without alteration, International Standard IS0 10
3、669 as a European Standard. The responsible German body involved in its preparation was the Normenausschu Mechanische Verbin- dungselemenfe (Fasteners Standards Committee). The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are as follows: IS0 Standard D
4、IN Standard IS0 3269 IS0 4042 IS0 1051 O DIN EN IS0 3269*) DIN EN IS0 4042 DIN EN IS0 1051 O IS0 4759-1 DIN EN IS0 4759-1 *) Amendments DIN 6903, December 1990 edition, has been superseded by the specifications of EN IS0 10669, which is identical to IS0 10669. Previous editions DIN 6903: 1966-09, 19
5、72-12, 1990-12 National Annex NA Standards referred to (and not included in Normative references and Annex ZA) DIN EN IS0 4042 DIN EN IS0 1051 O Tapping screw and washer assemblies with plain washers (IS0 1051 O : 1999) Fasteners - Electroplated coatings (IS0 4042 : 1999) *) Currently at draft stage
6、. EN comprises 6 pages. Q No pari of this standard may be reproduced without the prior permission of Ref. No. DIN EN IS0 10669 : 1999-1 1 DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). English pri
7、ce group 08 Sales No. 1108 04.00 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 10669 August 1999 ICs 21.060.30 English version Plain washers for tapping screw and washer assem blies Normal and large series - Product grade A (IS0 10669 : 1999) Rondelles plates pour vis tle rondelle incorpo
8、re - Sries normale et large - Grade A (IS0 10669 : 1999) Flache Scheiben fr Kombi-Blech- schrauben - Normale und groe Reihe - Produktklasse A (IS0 10669 : 1999) This European Standard was approved by CEN on 1999-07-1 6. CEN members are bound to comply with the CENKENELEC Internal Regulations which s
9、tipulate 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- ards may be obtained on application to the Central Secretariat or to any CEN member. The European Standa
10、rds exist 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 Central Secretariat has the same status as the official versions. CEN members are the national standa
11、rds bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europis
12、ches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1999. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN IS0 10669 : 1999 E Page 2 EN IS0 10669 : 1999 Foreword International Standard IS0 10669 : 19
13、99 Plain washers for tapping screw and washer assemblies - Normal and large series - Prod- uct grade A, which was prepared by ISO/TC 2 Fasteners of the International Organization for Standardization, has been adopted by Technical Committee CEN/TC 185 Threaded and non-threaded mechanical fasteners an
14、d 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 endorsement, and conflicting national standards withdrawn, by February 2000 at the latest. In ac
15、cordance 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, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, N
16、orway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Endorsement notice The text of the International Standard IS0 10669 : 1999 was approved by CEN as a European Standard without any modification. NOTE: Normative references to international publications are listed in Annex ZA (normat
17、ive). 1 Scope This International Standard specifies the characteristics of plain steel washers of product grade A for tapping screw and washer assemblies in accordance with IS0 10510. 2 Normative references The following normative documents contain provisions which, through reference in this text, c
18、onstitute provisions 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
19、editions of the 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 3269:-l), Fasteners - Acceptance inspection. IS0 4042: 1999, Fasten
20、ers - Electroplated coatings. IS0 4759-3:-2) , Tolerances for fasteners - Part 3: Plain washers for bolts, screws and nuts - Product grades A and C. IS0 6507-1 :I 997, Metallic materials - Vickers hardness test - Part I: Test method. IS0 1051 0:1999, Tapping screw and washer assemblies with plain wa
21、shers. To be published. (Revision of IS0 3269:1988) *)To be published. (Revision of IS0 4759-3:1991) Page 3 EN IS0 10669 : 1999 Nominal size 3 Classification Clearance hole Outside diameter Thickness di d9 h Washers of product grade A for tapping screw and washer assemblies are classified into two t
22、ypes: - Type N: Normal series; - Type L: Large series. (Nominal thread diameter, d) 22 23 3,5 42 43 5,5 63 8 9,5 4 Dimensions 4.1 Type N, normal series See Figure 1 and Table 1. L nom. (min.) ma. nom. (max.) min. nom. 1,9 2 5 4,82 1 23 2,6 7 6,64 1 3 3,1 8 7,64 1 3,55 3,67 9 8,64 1 4 4,12 10 9,64 1
23、4,7 4,82 12 11,57 1,6 5,4 5,52 14 13,57 1,6 7,15 7,3 16 15,57 1,6 8,8 8,95 20 19,48 2 Surface roughness in micrometres Ra Figure 1 max. 1 ,O6 1 ,O6 1 ,O6 1 ,O6 I ,O6 1,68 138 1,68 2,09 min. 0,94 0,94 0,94 0,94 0,94 1,52 1,52 1,52 1,91 Page 4 EN IS0 10669 : 1999 nom. 1 1 1 1 1,6 1,6 4.2 Type L, large
24、 series See Figure 2 and Table 2. max. min. 1 ,O6 0,94 1 ,O6 0,94 1 ,O6 0,94 1 ,O6 0,94 1,68 1.52 1,68 1,52 Surface roughness in micrometres 3,55 4 4,7 Ra 1,6 / 3,67 4,12 4,82 Ra 1,6 sl 12 15 15 - dl r 4 1 11,57 14,57 14,57 Figure 2 5,4 7.15 8.8 Table 2 Dimensions in millimetres 5,52 7,3 8.95 Nomina
25、l size 18 24 30 (Nominal thread diameter, d) 17,57 23,48 29.48 22 2,9 3.5 1,6 2 2.5 Clearance hole nom;.,l mi; 1,68 1,52 2,09 1,91 2.59 2,41 Outside diameter 10,57 42 43 5,5 63 8 9.5 Page 5 EN IS0 10669 : 1999 5 Specifications and reference International Standards See Table 3. Table 3 Materiala Stee
26、l” Mechanical propertiesc Hardness class 180 HV Hardness ranged 180 HV to 300 HV Tolerances Product grade Ae International Standard I IS0 4759-3 Surface finish Plain, .e. washers to be supplied in natural finish, treated with a protective lubricant or with other coatings as agreed between customer a
27、nd supplier. Requirements for electroplating are covered in IS0 4042. 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. For the acceptance procedure see IS0 3269.
28、Workmanship Acceptability a Other materials as agreed between customer and supplier. The carbon content shall not exceed O, 12 %. The mechanical properties are for the as delivered condition only. They may change when the screw and washer assembly is hardened and tempered. Hardness testing according
29、 to IS0 6507-1. Test force: HV 1 O for nominal thickness h s 1,2 rnm HV 30 for nominal thickness h 1,2 mm Product grade A does not apply to the tolerance of the clearance hole d, and the thickness h. e 6 Designation EXAMPLE hardness class 180 HV is designated as follows: A plain steel washer for tap
30、ping screw and washer assemblies, normal series, of nominal size 4,2 mm and Washer IC0 10669 - N - 4,2 - 180 HV Page 6 EN IS0 10669 : 1999 Annex ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or
31、 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 or revisions of any of these publications apply to this European Standard only
32、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 - Electroplated coatings EN IS0 4042 1999 IS0 6507-1 1997 Metallic materials - Vickers hardness test - Pari 1: EN IS0 6507-1 1997 Test me thod
