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1、AS 1237.22002 ISO 4759-3:2000 Australian Standard Plain washers for metric bolts, screws and nuts for general purposes Part 2: Tolerances ISO title: Tolerances for fasteners, Part 3: Plain washers for bolts, screws and nutsProduct grades A and C AS 1237.2 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on
2、 09 Oct 2008 This Australian Standard was prepared by Committee ME-029, Fasteners. It was approved on behalf of the Council of Standards Australia on 16 September 2002 and published on 27 September 2002. The following are represented on Committee ME-029: Australian Chamber of Commerce and Industry A
3、ustralian Industry Group Australian Institute of Steel Construction Bureau of Steel Manufacturers of Australia Electricity Supply Association of Australia Federal Chamber of Automotive Industries Institute of Materials Engineering Australasia Keeping Standards up-to-date Standards are living documen
4、ts which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are usin
5、g a current Standard, which should include any amendments which may have been published since the Standard was purchased. Detailed information about Standards can be found by visiting the Standards Australia web site at .au and looking up the relevant Standard in the on-line catalogue. Alternatively
6、, the printed Catalogue provides information current at 1 January each year, and the monthly magazine, The Australian Standard, has a full listing of revisions and amendments published each month. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notif
7、y us immediately of any apparent inaccuracies or ambiguities. Contact us via email at .au, or write to the Chief Executive, Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001. This Standard was issued in draft form for comment as DR 02298. Accessed by UNIVERSITY OF SOUTH AUSTRALIA
8、 on 09 Oct 2008 AS 1237.22002 Australian Standard Plain washers for metric bolts, screws and nuts for general purposes Part 2: Tolerances Originated as part of AS 12371973. Revised and redesignated in part as AS 1237.22002. COPYRIGHT Standards Australia International All rights are reserved. No part
9、 of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia International Ltd GPO Box 5420, Sydney, NSW 2001, Australia ISBN 0 7337 4847 3 Accessed by UNIVER
10、SITY OF SOUTH AUSTRALIA on 09 Oct 2008 ii PREFACE This Standard was prepared by the Standards Australia Committee ME-029, Fasteners to supersede AS 12371973, Flat metal washers for general engineering purposes (metric series), in part. The objective of this Standard is to provide manufacturers, supp
11、liers and users with tolerances for the principle features of plain washers, product grades A and C for use with metric bolts, screws, studs and nuts with nominal thread diameters from 1 mm to 150 mm inclusive. This Standard is identical with and has been reproduced from ISO 4759-3:2000, Tolerances
12、for fasteners, Part 3: Plain washers for bolts, screws and nutsProduct grades A and C. The term informative has been used in this Standard to define the application of the annex to which it applies. An informative annex is only for information and guidance. Attention is drawn to the possibility that
13、 some of the elements of this Standard may be the subject of patent rights. Standards Australia shall not be held responsible for identifying any or all such patent rights. As this Standard is reproduced from an international Standard, the following applies: (a)Its number does not appear on each pag
14、e of text and its identify is shown only on the cover and title page. (b)In the source text this part of ISO 4759 should read this Australian Standard. (c)A full point should be substituted for a comma when referring to a decimal marker. References to international Standards should be replaced by re
15、ferences to Australian or Australian/New Zealand Standards as follows: Reference to International StandardAustralian Standard or Australian/New Zealand Standard ISOAS 286ISO system of limits and fits1654ISO system of limits and fits 286-1Part 1: Bases of tolerances, deviations and fits 1654.1Part 1:
16、 Bases of tolerances, deviations and fits 286-2Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts 1654.2Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts 1101Geometrical Product Specifications (GPS) Geometrical tolerancing Tolera
17、nces of form, orientation, location and run-out 2692Technical drawingsGeometrical tolerancingMaximum material principle 4042FastenersElectroplated coatings Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008 AUSTRALIAN STANDARD Plain washers for metric bolts, screws and nuts for general purpose
18、s Part 2: Tolerances 1Scope This part of ISO 4759 establishes a selection of tolerances for use in the preparation of ISO product standards for punched plain washers of product grades A and C, for use with bolts, screws and nuts of nominal thread diameters of from 1 mm to 150 mm inclusive. It is rec
19、ommended that these tolerances also be used for non-standard washers. NOTEThe product grade refers to the quality of the product and to the size of the tolerances. Annex A (informative) presents tolerances taken from ISO 286-1 and ISO 286-2. 2Normative references The following normative documents co
20、ntain provisions which, through reference in this text, constitute provisions of this part of ISO 4759. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 4759 are encouraged to investigate
21、 the possibility of applying the most recent editions of the normative 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 11011),Geometrical pro
22、duct specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out. ISO 2692:1988,Technical drawings Geometrical tolerancing Maximum material principle. ISO 4042:1999,Fasteners Electroplated coatings. 3Tolerances The tolerances for plain washers of product grades
23、 A and C are given in Table 1. Unless otherwise specified, the tolerances specified in this part of ISO 4759 apply to washers prior to coating; see also ISO 4042. 1)To be published. (Revision of ISO 1101:1983) .au Standards Australia 1 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008 Deviati
24、ons from the tolerances specified in this part of ISO 4759 are permitted in product standards only for valid technical reasons. In cases where there is a difference between the tolerance requirements in this part of ISO 4759 and the product standard, the latter takes precedence. The tolerances of fo
25、rm and position are specified and indicated according to the definitions of ISO 1101 and ISO 2692. Table 1 Tolerances Product grades Feature AC 3.1 Clearance hole (punched)hd1h1hd1 mmtol.min.mmtol. h u 4 H130,5 h h u 4 H14 h ? 4H140,3 hh ? 4H15 Rollover and fracture are undefined but shall be presen
26、t. h1, rollover and fracture are undefined but shall be present. Key 1Rollover 2Fracture h1is the part of the hole within the tolerance specified for d1. hd2d2 mmtol.tol. h u 4h14 h 4h15 h16 h2, rollover and fracture are undefined but present. 3.2 Outside diameter (punched) Key 1Rollover 2Fracture h
27、2, is the part of the outer contour within the tolerance specified for d2. .au Standards Australia 2 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008 Table 1 (continued) Tolerances Product grades Feature AC hh tol.tol. mmmmmmmm h u 0,5? 0,05h u 0,5? 0,1 0,5 502 IT13d2 502 IT16 3.5.2 Coaxiali
28、ty NOTE Tolerancet1is based on dimension d2. ht2a mmmm Stainless steel excepted h u 0,50,1 0,5 h u 10,15 1 h u 2,50,2 2,5 h u 40,3 4 h u 60,4 6 h u 100,6(No requirements) 10 h u 201 Stainless steel h u 0,50,15 0,5 h u 10,22 1 h u 2,50,3 2,5 h u 40,45 3.5.3 Flatness 4 h u 60,6 6 h u 100,9NOTE Toleran
29、ce t2is always independent of the thickness tolerance for h. 10 h u 201,5 a Flatness is measured after removal of burrs. .au Standards Australia 4 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008 Annex A (informative) Tolerances Standard tolerance grades for IT values are given in table A.1
30、and the limit deviations for shafts and holes in tables A.2 and A.3, respectively. These tolerances are taken from ISO 286-1 and ISO 286-2. Table A.1 IT values of standard tolerance grades in millimetres Nominal dimensionsStandard tolerance grades IT12IT13IT15IT16overto Tolerances 30,10,140,40,6 360
31、,120,180,480,75 6100,150,220,580,9 10180,180,270,71,1 18300,210,330,841,3 30500,250,3911,6 50800,30,461,21,9 801200,350,541,42,2 1201800,40,631,62,5 1802500,460,721,852,9 Table A.2 Limit deviations for shafts Nominal dimensionsLimit deviations mmmm overtoh14h15h16 3 ? 0 25 0 ,? 0 4 0 ,? 06 0 , 36 ?
32、0 3 0 ,? 0 48 0 ,? 0 75 0 , 610 ? 0 36 0 ,? 0 58 0 ,? 0 9 0 , 1018 ? 0 43 0 ,? 07 0 ,? 11 0 , 1830 ? 0 52 0 ,? 0 84 0 ,? 13 0 , 3050 ? 0 62 0 ,? 1 0 ? 16 0 , 5080 ? 0 74 0 ,? 12 0 ,? 19 0 , 80120 ? 0 87 0 ,? 14 0 ,? 2 2 0 , 120180 0 1?16 0 ,?2 5 0 , 180250 ?115 0 ,?185 0 ,?2 9 0 , Table A.3 Limit de
33、viations for holes Nominal dimensionsLimit deviations mmmm overtoH13H14H15 3 0 014?, 0 0 25?, 0 0 4?, 36 0 018?, 0 0 3?, 0 0 48?, 610 0 0 22?, 0 0 36?, 0 0 58?, 1018 0 0 27?, 0 0 43?, 0 0 7?, 1830 0 0 33?, 0 0 52?, 0 0 84?, 3050 0 0 39?, 0 0 62?, 0 1? 5080 0 0 46?, 0 0 74?, 0 12?, 80120 0 0 54?, 0 0
34、 87?, 0 14?, 120180 0 0 63?, 0 1? 0 16?, 180250 0 0 72?, 0 115?, 0 185?, .au Standards Australia 5 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008 Bibliography 1ISO 286-1:1988,ISO system of limits and fits Part 1: Bases of tolerances, deviations and fits. 2ISO 286-2:1988,ISO system of limit
35、s and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts. .au Standards Australia 6 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008 Standards Australia Standards Australia is an independent company, limited by guarantee, which prepares and publishes m
36、ost of the voluntary technical and commercial standards used in Australia. These standards are developed through an open process of consultation and consensus, in which all interested parties are invited to participate. Through a Memorandum of Understanding with the Commonwealth government, Standard
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41、individually from our Web site, or via on-line and CD ROM subscription services. For more information phone 1300 65 46 46 or visit us at .au Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008 GPO Box 5420 Sydney NSW 2001 Administration Phone (02) 8206 6000 Fax (02) 8206 6001 Email .au Customer Service Phone 1300 65 46 46 Fax 1300 65 49 49 Email .au Internet .au ISBN 0 7337 4847 3Printed in Australia Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008 Thi s page has been l ef t i nt ent i onal l y bl ank. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 Oct 2008