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1、AS 1237.12002 ISO 887:2000 Australian Standard Plain washers for metric bolts, screws and nuts for general purposes Part 1: General plan AS 1237.1 This Australian Standard was prepared by Committee ME-029, Fasteners. It was approved on behalf of the Council of Standards Australia on 16 September 200
2、2 and published on 27 September 2002. The following are represented on Committee ME-029: Australian Chamber of Commerce and Industry Australian Industry Group Australian Institute of Steel Construction Bureau of Steel Manufacturers of Australia Electricity Supply Association of Australia Federal Cha
3、mber of Automotive Industries Institute of Materials Engineering Australasia Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Bet
4、ween editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased. Detailed information about Standards can be
5、found by visiting the Standards Australia web site at .au and looking up the relevant Standard in the on-line catalogue. Alternatively, 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 am
6、endments published each month. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. This Standard was issued in draft form for comment as DR 02297. AS 1237.12002 Australian Standard Plain
7、washers for metric bolts, screws and nuts for general purposes Part 1: General plan Originated as part of AS 12371973. Revised and redesignated in part as AS 1237.12002. COPYRIGHT Standards Australia International ii PREFACE This Standard was prepared by the Standards Australia Committee ME-029, Fas
8、teners to supersede AS 12371973, Flat metal washers for general engineering purposes (metric series), in part. The objective of this Standard is to provide manufacturers, suppliers and users with the nominal dimensions for plain washers, product grades A and C for use with metric general-purpose bol
9、ts, screws and nuts with nominal thread diameters from 1 mm to 150 mm inclusive. This Standard is identical with and has been reproduced from ISO 887:2000, Plain washers for metric bolts, screws and nuts for general purposesGeneral plan. The term informative has been used in this Standard to define
10、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 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
11、all such patent rights. As this Standard is reproduced from an international Standard, the following applies: (a)Its number does not appear on each page of text and its identify is shown only on the cover and title page. (b)In the source text this International Standard should read this Australian S
12、tandard. (c)A full point should be substituted for a comma when referring to a decimal marker. There are no equivalent Australian Standards to the normative reference given in Clause 2 and the International Standards given in Table 3. AS 1237.2, Plain washers for metric bolts, screws and nuts for ge
13、neral purposes, Part 2: Tolerances is identical with and has been reproduced from ISO 4759-3, which is referred to in Clause 6. AUSTRALIAN STANDARD Plain washers for metric bolts, screws and nuts for general purposes Part 1: General plan 1Scope This International Standard specifies the full range of
14、 the nominal dimensions of product-grade-A and -C plain washers for general-purpose bolts, screws and nuts of nominal thread diameters ranging from 1 mm to 150 mm inclusive. This International Standard is not applicable to washers for screw and washer assemblies in relation to hole diameters and thi
15、cknesses. Information on the use of plain washers is given in annex A. 2Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions o
16、f, 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 edition of the normative document indicated below. For undated references, the latest edition of the normative docu
17、ment referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 273:1979,Fasteners Clearance holes for bolts and screws. 3Clearance holes The clearance hole diameters d1for washers (see Figure 1) shall be chosen in accordance with those specified i
18、n ISO 273, as follows: ?fine series for washers of product grade A and with a nominal thickness of less than 6 mm, i.e. for nominal sizes 39 mm; ?medium series for washers of product grade A with a nominal thickness equal to or greater than 6 mm, i.e. for nominal sizesW39 mm and for washers of produ
19、ct grade C. NOTEThe tolerances for clearance holes given in ISO 273 for information are not applicable to plain washers of product grades A and C; see clause 6. .au Standards Australia 1 4Outside diameters The outside diameters d2for washers (see Figure 1) shall be chosen from the values given in Ta
20、ble 1. Table 1 Dimensions d2 Values in millimetres 2,58183980125185 39204485135200 3,510225092140210 411245698145220 4,5122860105160230 5143066110165240 6153472115175250 7163778120180 5Thicknesses The washer thicknesses h (see Figure 1) shall be chosen from the values given in Table 2. Table 2 Dimen
21、sions h Values in millimetres 0,3124814 0,51,22,551016 0,81,6361218 6Tolerances The tolerances for washers are specified in ISO 4759-3. .au Standards Australia 2 7Preferred combinations of plain-washer dimensions The preferred combinations of nominal dimensions d1, d2and h for plain washers of produ
22、ct grades A and C (see Figure 1) are given in Table 3. The washers are divided into four series: small, normal, large and extra large. These series are related to the size of the outside diameter d2. Figure 1 Dimensions .au Standards Australia 3 Table 3 Nominal dimensions of plain washers Dimensions
23、 en millimetres Nominal size Series SmallNormalLargeExtra large Product grade AProduct grade AProduct grade CProduct grade AProduct grade CProduct grade C (Thread size, d) d1d2 h ISO 7092 d1d2 h ISO 7089 ISO 7090 d1d2 h ISO 7091 d1d2 h ISO 7093-1 d1d2 h ISO 7093-2 d1d2 h ISO 7094 11,12,50,31,130,31,
24、230,3 1,21,330,31,33,50,31,43,50,3 1,41,530,31,540,31,640,3 1,61,73,50,3X1,740,3X1,840,3X1,750,31,850,3 1,8240,324,50,32,14,50,322,1 22,24,50,3X2,250,3X2,450,3X2,260,52,460,5 2,22,44,50,32,460,52,660,52,42,6 2,52,750,5X2,760,5X2,970,5X2,780,52,980,5 33,260,5X3,270,5X3,470,5X3,290,8X3,490,8X 3,53,770
25、,5X3,780,5X3,980,5X3,7110,8X3,9110,8X 44,380,5X4,390,8X4,590,8X4,3121X4,5121X 4,54,890,84,8100,85100,84,81515151 55,391X5,3101XX5,5101X5,3151,2X5,5151,2X5,5182X 66,4111,6X6,4121,6XX6,6121,6X6,4181,6X6,6181,6X6,6222X 77,4121,67,4141,67,6141,67,42227,62227,6242 88,4151,6X8,4161,6XX9161,6X8,4242X9242X9
26、283X 1010,5181,6X10,5202XX11202X10,5302,5X11302,5X11343X 1213202X13242,5XX13,5242,5X13373X13,5373X13,5444X 1415242,5X15282,5XX15,5282,5X15443X15,5443X15,5504X 1617282,5X17303XX17,5303X17503X17,5503X17,5565X 1819303X19343XX20343X19564X20564X20605X 2021343X21373XX22373X21604X22604X22726X 2223373X23393
27、XX24393X23665X24665X24806X 2425394X25444XX26444X25725X26725X26856X 2728444X28504XX30504X30856X30856X30986X 3031504X31564XX33564X33926X33926X331056X 3334565X34605XX36605X361056X361056X361158X .au Standards Australia 4 3637605X37665XX39665X391108X391108X391258X 3942726XX42726X4212084212084214010 42457
28、88XX45788X45125104512510 4548858XX48858X48135104813510 4852928XX52928X52145105214510 5256988XX56988X56160105616010 566210510XX6210510X 606611010XX6611010X 647011510XX7011510X 6874120107412010 7278125107812510 7682135108213510 8086140128614012 8591145129114512 9096160129616012 951011651210116512 1001
29、071751410717514 1051121801411218014 1101171851411718514 1151222001412220014 1201272101612721016 1251322201613222016 1301372301613723016 1401472401814724018 1501572501815725018 NOTEThe crosses indicate washers specified in the corresponding International Standards. .au Standards Australia 5 Annex A (
30、informative) Guidance on the use of plain washers with bolts, screws and nuts An overview of suitable combinations of plain washers and bolts, screws or nuts in respect of property (hardness) classes and product grades is given in Table A.1. More detailed information, including washer series and bol
31、t or screw head shape, is given in the scopes of the respective plain-washer product standards. Table A.1 Hardness class100 HV200 HV300 HV Washers Product gradeCAA Anoyesyes BnoyesyesBolts, screws, nutsProduct grade Cyesnono u 6.8yesyesyes 8.8noyesyes 9.8, 10.9nonoyes Bolts, screwsProperty class 12.
32、9nonono u 6 yesyesyes 8noyesyes 9, 10nonoyes NutsProperty class 12nonono Case-hardened thread rolling screwsyesyesyes Stainless-steel bolts, screws and nutsyes .au Standards Australia 6 Bibliography 1 ISO 4759-3:2000,Tolerances for fasteners Part 3: Plain washers for bolts, screws and nuts Product g
33、rades A and C. 2 ISO 7089:2000,Plain washers Normal series Product grade A. 3 ISO 7090:2000,Plain washers, chamfered Normal series Product grade A. 4 ISO 7091:2000,Plain washers Normal series Product grade C. 5 ISO 7092:2000,Plain washers Small series Product grade A. 6 ISO 7093-1:2000,Plain washers
34、 Large series Part 1: Product grade A. 7 ISO 7093-2:2000,Plain washers Large series Part 2: Product grade C. 8 ISO 7094:2000,Plain washers Extra large series Product grade C. .au Standards Australia 7 Standards Australia Standards Australia is an independent company, limited by guarantee, which prep
35、ares and publishes most 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
36、government, Standards Australia is recognized as Australias peak national standards body. Australian Standards Australian Standards are prepared by committees of experts from industry, governments, consumers and other relevant sectors. The requirements or recommendations contained in published Stand
37、ards are a consensus of the views of representative interests and also take account of comments received from other sources. They reflect the latest scientific and industry experience. Australian Standards are kept under continuous review after publication and are updated regularly to take account o
38、f changing technology. International Involvement Standards Australia is responsible for ensuring that the Australian viewpoint is considered in the formulation of international Standards and that the latest international experience is incorporated in national Standards. This role is vital in assisti
39、ng local industry to compete in international markets. Standards Australia represents Australia at both ISO (The International Organization for Standardization) and the International Electrotechnical Commission (IEC). Electronic Standards All Australian Standards are available in electronic editions, either downloaded individually from our Web site, or via on-line and CD ROM subscription services. ISBN 0 7337 4846 5Printed in Australia