1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 10663:2012Hexagon nuts with flange,style 2 Fine pitch threadBS ISO 10663:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 10663:
2、2012.It supersedes BS ISO 10663:1999, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee FME/9/1, Fasteners - Mechanical properties.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not
3、 purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 78300 5 ICS 21.060.20 Compliance with a British Standard cannot confer immunity from legal
4、obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 10663:2012 ISO 2012Hexagon nuts with flange, style 2 Fine pitch threadcrous hexagonaux embase
5、cylindro-tronconique, style 2 Filetage pas finINTERNATIONAL STANDARDISO10663Second edition2012-09-01Reference numberISO 10663:2012(E)BS ISO 10663:2012ISO 10663:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this
6、publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Ge
7、neva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 10663:2012ISO 10663:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Normative references . 13 Dimensions . 14 Requirements and reference International Sta
8、ndards 45 Designation . 4Annex A (informative) Gauging of hexagon nuts with flange . 5BS ISO 10663:2012ISO 10663:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Sta
9、ndards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also
10、take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees i
11、s to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibilit
12、y that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 10663 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 12, Fasteners with metric internal thread.This second e
13、dition cancels and replaces the first edition (ISO 10663:1999), of which it constitutes a minor revision.iv ISO 2012 All rights reservedBS ISO 10663:2012INTERNATIONAL STANDARD ISO 10663:2012(E)Hexagon nuts with flange, style 2 Fine pitch thread1 ScopeThis International Standard specifies the charact
14、eristics of hexagon nuts with flange (style 2), and metric fine pitch thread with nominal thread diameters, D, from 8 mm to 20 mm, in product grade A for D 16 mm and product grade B for D 16 mm.If, in special cases, specifications other than those listed in this International Standard are required,
15、they can be selected from existing International Standards, for example ISO 261, ISO 724, ISO 898-2, ISO 965-2 and ISO 3506 2.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For und
16、ated references, the latest edition of the referenced document (including any amendments) applies.ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensionsISO 261, ISO general purpose metric screw threads General planISO 724, ISO general-purpose metric screw threads Bas
17、ic dimensionsISO 898-2, Mechanical properties of fasteners Part 2: Nuts with specified proof load values Coarse thread and fine pitch threadISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and internal screw threads Medium qualityISO
18、 3269, Fasteners Acceptance inspectionISO 3506-2, Mechanical properties of corrosion-resistant stainless-steel fasteners Part 2: NutsISO 4042, Fasteners Electroplated coatingsISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and CISO 6157-2, Fasteners Sur
19、face discontinuities Part 2: NutsISO 8992, Fasteners General requirements for bolts, screws, studs and nutsISO 10683, Fasteners Non-electrolytically applied zinc flake coatings3 DimensionsSee Figure 1 and Table 1.Symbols and descriptions of dimensions are specified in ISO 225. ISO 2012 All rights re
20、served 1BS ISO 10663:2012ISO 10663:2012(E)amwis the wrenching height; see the note to Table 1.b = 90 to 120.c = 15 to 30.d = 15 to 25.ec is measured at dw,min.fContour of the edge is at the discretion of the manufacturer.Figure 12 ISO 2012 All rights reservedBS ISO 10663:2012ISO 10663:2012(E)Table 1
21、 DimensionsDimensions in millimetresThread (D Pa)M8 1 M10 1,25 M12 1,25 (M14 1,5)bM16 1,5 M20 1,5(M10 1)b(M12 1,5)bc min. 1,2 1,5 1,8 2,1 2,4 3,0damax. 8,75 10,80 13,00 15,10 17,30 21,60min. 8,00 10,00 12,00 14,00 16,00 20,00dcmax. 17,9 21,8 26,0 29,9 34,5 42,8dwmin. 15,8 19,6 23,8 27,6 31,9 39,9e m
22、in. 14,38 16,64 20,03 23,36 26, 75 32,95mmax. 8,00 10,00 12,00 14,00 16,00 20,00min. 7,64 9,64 11,57 13,30 15,30 18,70mwmin. 4,6 5,6 6,8 7,7 8,9 10,7smax. 13,00 15,00 18,00 21,00 24,00 30,00min. 12,73 14,73 17,73 20,67 23,67 29,16rcmax. 0,5 0,6 0,7 0,9 1,0 1,2NOTE If the product passes the gauging g
23、iven in Annex A, the requirements for dimensions e, c and mware satisfied.aP is the pitch of the thread.bThe size in parentheses should be avoided if possible.cRadius, r, applies both at the corners and the flats of the hexagon. ISO 2012 All rights reserved 3BS ISO 10663:2012ISO 10663:2012(E)4 Requi
24、rements and reference International StandardsSee Table 2.Table 2 Requirements and reference International StandardsMaterial SteelStainless steelGeneral requirementsInternational Standard ISO 8992ThreadTolerance class 6HInternational Standards ISO 261, ISO 724, ISO 965-2Mechanical propertyProperty cl
25、ass 8, 10, 12aA2-70International Standards ISO 898-2 ISO 3506-2ToleranceProduct gradeD 16 mm: AD 16 mm: BInternational Standard ISO 4759-1Finish CoatingAs processed As processedRequirements for electroplating are specified in ISO 4042.Requirements for non-electrolytically applied zinc flake coatings
26、 are specified in ISO 10683.Additional requirements or other finishes or coatings shall be agreed between the supplier and the purchaser.Surface integrityLimits for surface discontinuities are specified in ISO 6157-2.Acceptability For acceptance procedure, see ISO 3269.a For D 16 mm, property class
27、12 is not specified.5 DesignationEXAMPLE A hexagon nut with flange, with thread M12 1,25 and property class 10 is designated as follows:Hexagon nut with flange ISO 10663 - M12 1,25 - 104 ISO 2012 All rights reservedBS ISO 10663:2012ISO 10663:2012(E)Annex A (informative) Gauging of hexagon nuts with
28、flangeA.1 Recommended method for gauging of hexagonSee Figure A.1 and Table A.1.The nut shall be gauged using two plain ring gauges, A and B, to demonstrate the coincidental acceptability of hexagon height, wrenching height, corner fill and width across corners. Gauge A shall be placed over the nuts
29、 and shall be seated on the flange. Gauge B shall be placed on the top of the nut normal to the nut axis. The two gauges shall not be in contact.A.2 Recommended method for gauging of flange thicknessSee Figure A.1 and Table A.1.Gauge C is a flat feeler or ring gauge. It is used to prove that the fla
30、nge thickness at the junction of the gauge with the hexagon portion is equal to or greater than specified values. The acceptance criterion is that gauge C fits under gauge A without contact where the nut is seated on a flat plate.Key1 gauge A2 gauge B3 gauge CNOTE Wa,min= etheoreticalWb,max= emin 0,
31、01 mmTa,max= mw,minFigure A.1 ISO 2012 All rights reserved 5BS ISO 10663:2012ISO 10663:2012(E)Table A.1Dimensions in millimetresNominal thread diameterGauge A Gauge B Gauge CWaTaWbTbWcTcD max. min. max. min. max. min. min. min. max. min.8 15,02 15,01 4,60 4,59 14,37 14,36 4 20 1,31 1,3010 17,33 17,3
32、2 5,60 5,59 16,63 16,62 5 24 1,81 1,8012 20,79 20,78 6,80 6,79 20,02 20,01 5 29 2,20 2,1914 24,26 24,25 7,70 7,69 23,35 23,34 6 32,5 2,55 2,5416 27,72 27,71 8,90 8,89 26,74 26,73 6 37 2,96 2,9520 34,65 34,64 10,70 10,69 32,94 32,93 6 45 3,70 3,696 ISO 2012 All rights reservedBS ISO 10663:2012BS ISO
33、10663:2012ISO 10663:2012(E) ISO 2012 All rights reservedICS 21.060.20Price based on 6 pagesThis page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services. It presents the UK view on
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