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1、BRITISH STANDARD BS ISO 965-3:1998 ISO general purpose metric screw threads Tolerances Part 3: Deviations for contructional screw threads ICS 21.040.10 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 This British Standard,
2、having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 April 1999 BSI 03-2000 ISBN 0 580 32353 6 National foreword This British Standard reproduces verbatim ISO 965-3:1998 and implements i
3、t as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee FME/9, Bolts, nuts and accessories, to Subcommittee FME/9/3, Reference standards for fasteners, which has the responsibility to: aid enquirers to understand the text; present to the responsibl
4、e 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 the UK. A list of organizations represented on this subcommittee can be obtained on requ
5、est 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 “International Standards Correspondence Index”, or by using the “Find” facility of t
6、he 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 with a British Standard does not of itself confer immunity from legal obligations. Su
7、mmary of pages This document comprises a front cover, an inside front cover, pages i and ii, the ISO title page, pages ii to iv, pages 1 to 16 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table
8、 on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 BSI 03-2000i Contents Page National forewordInside front cover Forewordiii Text of ISO 965
9、-31 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00
10、 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 ii BSI 03-2000 Contents Page Forewordiii 1Scope1 2Normative references1 3Definitions1 4Deviations1 Table 12 Descriptors: Screw threads, ISO metric threads, dimensions, dimensional tolerances, dimensional deviations. Licensed Copy: sheffieldun sheff
11、ieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 BSI 03-2000iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is n
12、ormally 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 take part i
13、n the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard
14、 requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 965-1 was prepared by Technical Committee ISO/TC 1, Screw threads, Subcommittee SC 2, Tolerances. This third edition cancels and replaces the second edition (ISO 965-3:1980), which has been technicall
15、y revised. ISO 965 consists of the following parts, under the general title ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data; Part 2: Limits of sizes for general purpose bolt and nut threads Medium quality; Part 3: Deviations for constructional screw threads; Par
16、t 4: Limits of sizes for hot-dip galvanized external threads to mate with internal threads tapped with tolerance position H or G after galvanizing; Part 5: Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h befo
17、re galvanizing. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 BSI 03-20001 1 Scope This part of ISO 965 s
18、pecifies deviations for pitch and crest diameters for ISO general purpose metric screw threads (M) conforming to ISO 261 having basic profile according to ISO 68-1. The deviations specified are derived from the fundamental deviations and tolerances specified in ISO 965-1. 2 Normative references The
19、following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 965. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 965 are encouraged to
20、 investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 68-1:1998, ISO general purpose screw threads Basic profile Part 1: Metric screw threads. ISO 261:1998, ISO gen
21、eral purpose metric screw threads General plan. ISO 965-1:1998, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data. ISO 5408:1983, Cylindrical screw threads Vocabulary. 3 Definitions For the purpose of this part of ISO 965 the definitions given in ISO 5408 apply. 4
22、 Deviations For internal threads as well as external threads, the actual root contour shall not in any point transgress the basic profile. The tabulated deviation values for the minor diameter of the external thread are calculated on the basis of truncation and may be used for stress calculations Fo
23、r coated threads, the tolerances apply to the parts before coating, unless otherwise stated. After coating the actual thread profile shall not in any point transgress the maximum material limits for position H or h respectively. NOTEThese provisions are intended for thin coatings, for example those
24、obtained by electroplating. H 6 - - deviation es H 6 - -+ =. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 2 BSI 03-2000 Table 1 ES, es = upper deviation; EI, ei = lower deviation Basic major diameter PitchInternal thread
25、External thread overup toTolerance class Pitch diameter Minor diameter Tolerance class Pitch diameter Major diameter Minor diameter ESEIESEIeseieseiDeviation for stress calculation mmmmmm4m4m4m4m4m4m4m4m4m 0,991,40,2 4H 5G 5H 6G 6H 7G 7H 8G 8H + 40 0 + 38 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g
26、6g 7h6h 8g 9g8g 0 0 17 0 0 17 0 24 30 55 38 38 65 48 0 0 17 0 0 17 0 36 36 73 36 56 73 56 29 29 46 29 29 46 29 0,25 4H 5G 5H 6G 6H 7G 7H 8G 8H + 45 + 74 + 56 0 + 18 0 + 45 + 74 + 56 0 + 18 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 18 0 0 18 0 26 34 60 42 42 71 53 0 0 18 0 0 18
27、0 42 42 85 42 67 85 67 36 36 54 36 36 54 36 0,3 4H 5G 5H 6G 6H 7G 7H 8G 8H + 48 + 78 + 60 + 93 + 75 0 + 18 0 + 18 0 + 53 + 85 + 67 + 103 + 85 0 + 18 0 + 18 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 18 0 0 18 0 28 36 63 45 45 74 56 0 0 18 0 0 18 0 48 48 93 48 75 93 75 43 43 61 4
28、3 43 61 43 1,42,80,2 4H 5G 5H + 42 0 + 38 0 3h4h 4h 5g6g 5h4h 5h6h 0 0 17 0 0 25 32 57 40 40 0 0 17 0 0 36 36 73 36 56 29 29 46 29 29 es H 6 - -+ Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 BSI 03-20003 Table 1 ES, es =
29、 upper deviation; EI, ei = lower deviation Basic major diameter PitchInternal threadExternal thread overup toTolerance class Pitch diameter Minor diameter Tolerance class Pitch diameter Major diameter Minor diameter ESEIESEIeseieseiDeviation for stress calculation mmmmmm4m4m4m4m4m4m4m4m4m 1,42,80,2
30、6G 6H 7G 7H 8G 8H 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 32 17 0 82 67 50 32 17 0 88 73 56 61 46 29 0,25 4H 5G 5H 6G 6H 7G 7H 8G 8H + 48 + 78 + 60 0 + 18 0 + 45 + 74 + 56 0 + 18 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 18 0 0 33 18 0 28 36 63 45 45 89 74 56 0 0 18 0 0 33 18 0 42 4
31、2 85 42 67 100 85 67 36 36 54 36 36 69 54 36 0,35 4H 5G 5H 6G 6H 7G 7H 8G 8H + 53 + 86 + 67 + 104 + 85 0 + 19 0 + 19 0 + 63 + 99 + 80 + 119 + 100 0 + 19 0 + 19 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 19 0 0 34 19 0 19 0 32 40 69 50 50 97 82 63 99 80 0 0 19 0 0 34 19 0 19 0 53
32、 53 104 53 85 119 104 85 104 85 51 51 70 51 51 85 70 51 70 51 0,4 4H 5G 5H 6G 6H + 56 + 90 + 71 + 109 + 90 0 + 19 0 + 19 0 + 71 + 109 + 90 + 131 + 112 0 + 19 0 + 19 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 0 0 19 0 0 34 19 0 34 42 72 53 53 101 86 67 0 0 19 0 0 34 19 0 60 60 114 60 95 129 114 95 58
33、58 77 58 58 92 77 58 es H 6 - -+ Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 4 BSI 03-2000 Table 1 ES, es = upper deviation; EI, ei = lower deviation Basic major diameter PitchInternal threadExternal thread overup toTol
34、erance class Pitch diameter Minor diameter Tolerance class Pitch diameter Major diameter Minor diameter ESEIESEIeseieseiDeviation for stress calculation mmmmmm4m4m4m4m4m4m4m4m4m 1,42,80,47G 7H 8G 8H 7g6g 7h6h 8g 9g8g 19 0 104 85 19 0 114 95 77 58 0,45 4H 5G 5H 6G 6H 7G 7H 8G 8H + 60 + 95 + 75 + 115
35、+ 95 0 + 20 0 + 20 0 + 80 + 120 + 100 + 145 + 125 0 + 20 0 + 20 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 20 0 0 35 20 0 20 0 36 45 76 56 56 106 91 71 110 90 0 0 20 0 0 35 20 0 20 0 63 63 120 63 100 135 120 100 120 100 65 65 85 65 65 100 85 65 85 65 2,85,60,35 4H 5G 5H 6G 6H 7G
36、 7H 8G 8H + 56 + 90 + 71 + 109 + 90 0 + 19 0 + 19 0 + 63 + 99 + 80 + 119 + 100 0 + 19 0 + 19 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 19 0 0 34 19 0 19 0 34 42 72 53 53 101 86 67 104 85 0 0 19 0 0 34 19 0 19 0 53 53 104 53 85 119 104 85 104 85 51 51 70 51 51 85 70 51 70 51 0,5
37、 4H 5G 5H 6G 6H 7G 7H 8G 8H + 63 + 100 + 80 + 120 + 100 + 145 + 125 0 + 20 0 + 20 0 + 20 0 + 90 + 132 + 112 + 160 + 140 + 200 + 180 0 + 20 0 + 20 0 + 20 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 20 0 0 50 36 20 0 50 20 0 38 48 80 60 60 125 111 95 75 145 115 95 0 0 20 0 0 50 36
38、20 0 50 20 0 67 67 126 67 106 156 142 126 106 156 126 106 72 72 92 72 72 122 108 92 72 122 92 72 es H 6 - -+ Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:04:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 965-3:1998 BSI 03-20005 Table 1 ES, es = upper deviation; EI, ei = lower devi
39、ation Basic major diameter PitchInternal threadExternal thread overup toTolerance class Pitch diameter Minor diameter Tolerance class Pitch diameter Major diameter Minor diameter ESEIESEIeseieseiDeviation for stress calculation mmmmmm4m4m4m4m4m4m4m4m4m 2,85,60,6 4h 5G 5H 6G 6H 7G 7H 8G 8H + 71 + 111
40、 + 90 + 133 + 112 + 161 + 140 0 + 21 0 + 21 0 + 21 0 + 100 + 146 + 125 + 181 + 160 + 221 + 200 0 + 21 0 + 21 0 + 21 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 21 0 0 53 36 21 0 53 21 0 42 53 88 67 67 138 121 106 85 159 127 106 0 0 21 0 0 53 36 21 0 53 21 0 80 80 146 80 125 178 1
41、61 146 125 178 146 125 87 87 108 87 87 140 123 108 87 140 108 87 0,7 4H 5G 5H 6G 6H 7G 7H 8G 8H + 75 + 117 + 95 + 140 + 118 + 172 + 150 0 + 22 0 + 22 0 + 22 0 + 112 + 162 + 140 + 202 + 180 + 246 + 224 0 + 22 0 + 22 0 + 22 0 3h4h 4h 5g6g 5h4h 5h6h 6e 6f 6g 6h 7e6e 7g6g 7h6h 8g 9g8g 0 0 22 0 0 56 38 22 0 56 22 0 45 56 93 71 71 146 128 112 90 168 134 112 0 0 22 0 0 56 38 22 0 56 22 0 90 90 162 90 140 196 178 162 140 196 162 140 101 101 123 101 101 157 139 123 101 157 123