1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 885:2000 ICS 21.06
2、0.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW General purpose bolts and screws Metric series Radii under the headThis British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Commi
3、ttee and comes into effect on 15 May 2000 BSI 05-2000 ISBN 0 580 34866 0 BS ISO 885:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard reproduces verbatim ISO 885:2000 and implements it as the UK national standard. The UK participation in its prep
4、aration was entrusted to Technical Committee FME/9, Bolts Nuts present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in
5、the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled
6、 “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance
7、with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iii, a blank page, pages 1 and 2, an inside back cover and a back cover. The BSI copyright notice displaye
8、d in this document indicates when the document was last issued.Referencenumber ISO885:2000(E) INTERNATIONAL STANDARD ISO 885 Secondedition 2000-03-01 GeneralpurposeboltsandscrewsMetric seriesRadiiunderthehead Vis dapplicatiion gnrale Srie mtrique Rayon darrondi sous tteISO885:2000(E) ii ISO885:2000(
9、E)iii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablish
10、edhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedina
11、ccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. Attentionisdrawntothepossibilitythatsomeoftheeleme
12、ntsofthisInternationalStandardmaybethesubjectof patentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO885waspreparedbyTechnicalCommitteeISO/TC2, Fasteners, Subcommittee SC 7, Reference Standards for fasteners (mainly covering terminology, dimensioni
13、ng, sizes and tolerancing). Thissecondeditioncancelsandreplacesthefirstedition(ISO885:1976),whichhasbeentechnicallyrevised.INTERNATIONALSTANDARD ISO885:2000(E)1 GeneralpurposeboltsandscrewsMetricseriesRadii underthehead 1 Scope ThisInternationalStandardspecifiesthesizesoftheradiiundertheheadandthetr
14、ansitiondiametersofmetric seriesgeneralpurposeboltsandscrews. 2 Dimensions SeeFigure1andTable1. Figure1ISO885:2000(E) 2 Table1Dimensionsr min andd a,max Dimensionsinmillimetres Thread diameter Radius r min Transitiondiameter a d a,max Thread diameter Radius r min Transitiondiameter a d a,max d produ
15、ctgrades A,BandC product grades AandB productgrade C d productgrades A,BandC product grades AandB productgrade C 1,6 0,1 2 39 1 42,4 45,4 2 0,1 2,6 42 1,2 45,6 48,6 2,2 0,1 2,8 45 1,2 48,6 52,6 2,5 0,1 3,1 48 1,6 52,6 56,6 3 0,1 3,6 52 1,6 56,6 62,6 3,5 0,1 4,1 56 2 63 67 4 0,2 4,7 60 2 67 71 4,5 0,
16、2 5,2 64 2 71 75 5 0,2 5,7 6 68 2 75 79 6 0,25 6,8 7,2 72 2 79 83 7 0,25 7,8 8,2 76 2 83 87 8 0,4 9,2 10,2 80 2 87 92 10 0,4 11,2 12,2 85 2 92 97 12 0,6 13,7 14,7 90 2,5 97 102 14 0,6 15,7 16,7 95 2,5 102 108 16 0,6 17,7 18,7 100 2,5 108 113 18 0,6 20,2 21,2 105 2,5 113 118 20 0,8 22,4 24,4 110 2,5
17、118 123 22 0,8 24,4 26,4 115 2,5 123 128 24 0,8 26,4 28,4 120 2,5 128 133 27 1 30,4 32,4 125 2,5 133 138 30 1 33,4 35,4 130 2,5 138 145 33 1 36,4 38,4 140 2,5 148 156 36 1 39,4 42,4 150 2,5 159 166 a Thetransitiondiameterd a isthediameterofthecircleformedatthejunctionoftheradiusrandthebearingsurface
18、ofthehead.BS ISO 885:2000 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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