1、Plain washers - Small series Product grade A (IS0 7092 : 2000) English version of DIN EN IS0 7092 ICs 21.060.30 DIN EN IS0 7092 - Supersedes DIN 433-1 and DIN 433-2, March 1990 editions. Previous editions DIN 433: 1921 -01, 1923-03, 1936-1 O, 1943-05, 1946-04, 1954-01, 1972-03; DIN 433-1 : 1990-03;
2、, DIN 433-2: 1990-03 Flache Scheiben - Kleine Reihe - Produktklasse A (IS0 7092 : 2000) *) Currently at draft stage. European Standard EN IS0 7092 : 2000 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 d
3、ecision taken by CEN/TC 185 Threaded and non- threaded mechanical fasteners and accessories to adopt, without alteration, International Standard IS0 7092 as a European Standard. The responsible German body involved in its preparation was the Normenausschuss Mechanische Verbin- dungselemente (Fastene
4、rs Standards Committee), Technical Committee Scheiben und Ringe. The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN 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 3506-1 DIN EN IS0 3
5、506-1 IS0 4759-3 IS0 6507-1 DIN EN IS0 4759-3 DIN EN IS0 6507-1 IS0 10683 DIN EN IS0 10683*) Amendments DIN 433-1 and 433-2, March 1990 editions, have been superseded by the specifications of EN IS0 7092, November 2000 edition. which is identical to IS0 7092. Continued overleaf. EN comprises 6 pages
6、. Q No part of this standard may be reproduced without the prior permission of Ref. No. DIN EN IS0 7092 : 2000-1 1 DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen). English price group O7 Sale
7、s No. 1107 04.01 Page 2 DIN EN IS0 7092 : 2000-1 1 National Annex NA Standards referred to (and not included in Normative references 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 - Acceptanc
8、e inspection (IS0 3269 : 2000) DIN EN IS0 3506-1 Mechanical properties of corrosion-resistant stainless steel fasteners - Part 1 : Bolts, screws and studs (IS0 3506-1 : 1997) DIN EN IS0 4042 Fasteners - Electroplated coatings (IS0 4042 : 1999) DIN EN IS0 4759-3 Tolerances for fasteners - Part 3: Pla
9、in 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 (ISO/DIS 10683 : 1999)*) *) Current
10、ly at draft stage. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 7092 June 2000 ICs 21.060.30 English version Plain washers - Small series Product grade A (IS0 7092 : 2000) Rondelles plates -Srie troite - Grade A (IS0 7092 : 2000) Flache Scheiben - Kleine Reihe - Produktklasse A (IS0 7092
11、 : 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 alteration. Up-to-date lists and bibliographical
12、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 translation under the responsibility of a CEN mem
13、ber 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, Ireland, Italy, Luxembourg, the Netherlands, Norw
14、ay, 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 of exploitation in any form and by any means re
15、served worldwide for CEN national members. Ref. No. EN IS0 7092 : 2000 E Page 2 EN IS0 7092 : 2000 Foreword International Standard IS0 7092 : 2000 which was prepared by ISO/TC 2 Fasteners of the International Organization for Standardization, has been adopted by Technical Committee CEN/TC 185 Thread
16、ed 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 endorsement, and conflicting national standards withd
17、rawn, 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, Finland, France, Germany, Greece, Iceland, Ire
18、land, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Plain washers -Small series - Product grade A, Endorsement notice The text of the International Standard IS0 7092 : 2000 was approved by CEN as a European Standard without any modification
19、. NOTE: Normative references to international publications are listed in Annex ZA (normative). 1 Scope This International Standard specifies the characteristics of small-series, product-grade-A plain washers in the 200 HV and 300 HV hardness classes and of nominal sizes (nominal thread diameters) ra
20、nging from 1,6 mm to 36 mm inclusive. Washers of hardness class 200 HV are suitable for - cheese head screws in property classes up to and including 8.8, or made of stainless steel; - hexagon socket head cap screws in property classes up to and including 8.8, or made of stainless steel; - hexalobula
21、r socket head cap screws in property classes up to and including 8.8, or made of stainless steel; - case-hardened thread rolling screws with cheese heads. Washers of hardness class 300 HV are suitable for - hexagon socket head cap screws in property classes up to and including 10.9; - hexalobular so
22、cket head cap screws in property classes up to and including 10.9. If dimensions other than those listed in this International Standard are required, they should be selected from those given in IS0 887. When soft material pieces are clamped, or large clearance holes in the workpiece are used, the us
23、er should check the technical suitability of this type of washer. Page 3 EN IS0 7092 : 2000 I /A I - 6 d2 2 Normative references c Ra 3,2 for h 3 The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For date
24、d 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 documents indicated below. For unda
25、ted references, the latest edition of the normative document referred to applies. Members of IS0 and IEC maintain registers of currently valid International Standards. IS0 887:2000, Plain washers for metric bolts, screws and nuts for general purposes - General plan. IS0 3269:2000, Fasteners -Accepta
26、nce inspection. IS0 3506-1 : 1997, Mechanical properties of corrosion-resistant stainless-steel fasteners - fan 1: Bolts, screws and studs. IS0 4042:1999, Fasteners - Electroplated coatings IS0 4759-3:2000, Tolerances for fasteners - Part 3: Plain washers for bolts, screws and nuts - Product grades
27、A and C. IS0 6507-1 :1997, Metallic materials - Vickers hardness test - Part 1: Test method. IS0 1 0683-), Fasteners - Non-electrolytically applied zinc flake coatings. 3 Dimensions See Figure 1 and Tables 1 and 2 Dimensions in millimetres, surface roughness values in micrometres Figure 1 - Dimensio
28、ns 1) To be published Page 4 EN IS0 7092 : 2000 Outside diameter (12 Table 1 - Preferred dimensions Thickness h Dimensions in millimetres 6 a 10 12 16 20 24 30 36 Nominal size 1 Clearance hole 6,40 6,62 8,40 8,62 10,50 10,77 13,OO 13,27 17,OO 17,27 21 ,o0 21,33 25,OO 25,33 31 ,O0 31,39 37,OO 37.62 N
29、ominal size (Nominal thread diameter, d) 33 14 18 22 27 33 dl (Nominal thread diameter, d) (min.) Clearance hole Outside diameter Thickness dl ir, i2 nom. max. nom. min. nom. max. min (min.) (rnax.) 3,70 3,88 7,OO 6;64 0,s 0,55 0,45 15,OO 15,27 24,OO 23,48 2,5 27 23 19,oo 19,33 30,OO 29,48 3 3,3 2,7
30、 23.00 23,33 37.00 36,38 3 3,3 2,7 28,OO 28,33 44,OO 43,38 4 4,3 3,7 34,OO 34,62 56,O 54,8 5 56 4,4 min. 1 nom. I max. nom. (max.) min 4 5 1,70 2,20 2,70 335 4,5 5,O 0,35 0,35 0,55 0,25 0,25 0,45 3,20 4,30 5,30 6,O 8,OO 9,oo 0,55 0,55 1,1 0,45 0,45 0,g 11 ,o0 15,OO 18,OO 10,57 1,6 14,57 1,6 17,57 1.
31、6 20,oo 28,OO 34,OO 19,48 2 27,48 2,s 33,38 3 39,OO 50,OO 60,O 3,7 3,7 4.4 Table 2 - Non-preferred dimensions Dimensions in millimetres Page 5 EN IS0 7092 : 2000 Steel 4 See Table 3. Requirements and international Standards of reference _ Stainless steel A2 FI C1 A4 c4 IS0 3506-1 Table 3 - Specifica
32、tions and International Standards of reference 200 HV 200 HV to 300 HV Material a Grade 300 HV 200 HV 300 HV 200 HV to to 370 HV 300 HV International Standard Hardness class Mechanical properties Hardness range d Product grade in te rnati ona i Standard Tolerances Surface finish Workmanship Acceptab
33、ility 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-electrolytically applied zinc flake coatings covered in IS0 1
34、0683. 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 coating to obviate detrimental hydrogen embrittlement. All t
35、olerances 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. Plain: .e. washers shall be supplied in natural finish. Acceptance procedure covered in IS0 3269. a Other metallic mat
36、erials as agreed between customer and supplier. Related to chemical composition only. Hardened and tempered. Hardness testing according to IS0 6507-1. Test force: HV 2 for nominal thickness /i 1,2 mm HV 1 O HV 30 Page 6 EN IS0 7092 : 2000 5 Designation EXAMPLE 1 is designated as follows: A small-ser
37、ies, product-grade-A plain washer made of steel, of nominal size 8 mrn and hardness class 200 HV Washer IS0 7092-8-200 HV EXAMPLE 2 hardness class 200 HV is designated as follows: A small series, product-grade-A plain washer made of grade A2 stainless steel, of nominal size 8 mm and Washer IS0 7092-
38、8-200 HV-A2 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 publications. These normative references are cited at the appropriate places in the t
39、ext 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 undated references the latest edition of the publication referred to appl
40、ies. Publication Year Title - EN IC0 3506-1 1997 Mechanical properties of corrosion-resistant stainless-steel EN IS0 3506-1 1997 fasteners - Part 1: Bolts, screws and studs IS0 4042 1999 Fasteners - Electroplated coatings EN IC0 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
