1、DEUTSCHE NORM November 1999 I IS0 general purpose metric screw threads -Tolerances Part 2: Limits of sizes for general purpose external and internal - screw threads - Medium quality (IS0 965-2 19981 I ISO965-2 ICs 21.040.1 O This standard, together with DIN IS0 262, November 1999 edition, supersedes
2、 DIN 13-1 3, October 1983 edition. Metrisches ISO-Gewinde allgemeiner Anwendung - Toleranzen - Teil 2: Grenzmae fr Auen- und Innengewinde allgemeiner Anwendung - Toleranzklasse mittel (IS0 965-2 : 1998) This standard incorporates International Standard IS0 965-2 IS0 general purpose metric screw thre
3、ads -Tolerances - Part 2: Limits of sizes for general purpose external and internal screw threads - Medium quality. A comma is used as the decimal marker. National foreword This standard has been prepared by ISO/TC 1. The responsible German body involved in its preparation was the Normenausschu Tech
4、nische Grundlagen (Fundamentals in Technology Standards Committee). The DIN Standards corresponding to the International Standards referred to in clause 2 of the IS0 Standard are as follows: IS0 Standard DIN Standard IS0 262 DIN IS0 262 IS0 5408 DIN 2244 IS0 68-1 DIN IS0 68-1 IS0 965-1 DIN IS0 965-1
5、 Amendments DIN 13-1 3, October 1983 edition, has been superseded by the specifications of DIN IS0 965-2 and DIN IS0 262. Previous editions DIN 40404: 1957-1 1 DIN 13-33: 1960-1 1,1962-1 O, 1964-06,1965-08; DIN 13-1 3: 1972-05,1972-07,1983-1 O. National Annex NA Standards referred to (and not includ
6、ed in Normative references) DIN 2244 Screw threads -Terminology DIN IS0 68-1 DIN IS0 262 DIN IS0 965-1 IS0 general purpose screw threads - Basic profile - Part 1 : Metric screw threads IS0 general purpose metric screw threads -Selected sizes for screws, bolts and nuts (IS0 262 : 1998) IS0 general pu
7、rpose metric screw threads -Tolerances - Part 1 : Principles and basic data (IS0 965-1 : 1998) (IS0 68-1 : 1998) IS0 Standard comprises 6 pages. No pari of this standard may be reproduced without the prior permission of Ref. No. DIN IS0 965-2 : 1999-1 Y Deutsches Institut fr Normung e. V., Berlin. w
8、th Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). - . English price group 08 Sales No 0408 04 O0 Page 1 IS0 965-2 : 1998 IS0 general purpose metric screw threads -Tolerances Part 2: Limits of sizes for general purpose external and internal screw threa
9、ds - Medium quality Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a s
10、ubject 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 in the work. IS0 collaborates closely with the International Electrotechnical Commission
11、(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 requires approval by at least 75 YO of the member bodies casting a vote. International
12、Standard IS0 965-2 was prepared by Technical Committee ISOTTC 1, Screw threads, Subcommittee SC 2, Tolerances. This third edition cancels and replaces the second edition (IS0 965-2:1980), which has been technically revised. IS0 965 consists of the following parts, under the general title IS0 general
13、 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 - Part 4: Limits of sizes for hot-dip galvanized external threads to mate with inte
14、rnal 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 before galvanizing Page 2 IS0 965-2 : 1998 1 Scope This part of IS0 965 specifies
15、 limits of sizes for pitch and crest diameters for IS0 general purpose metric screw threads (M) conforming to IS0 262 having basic profile according to IS0 68-1. The limits of sizes for the tolerance quality specified are derived from the fundamental deviations and tolerances specified in IS0 965-1.
16、 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 965. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this pari
17、of IS0 965 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 68-1 :I 998, IS0 general purpose screw threads Basic profile - Pari 1: Metric scre
18、w threads. IS0 262:1998, IS0 general purpose metric screw threads - Selected sizes for screws, bolts and nuts. IS0 965-1 :1998, IS0 general purpose metric screw threads - Tolerances - Part I: Principles and basic data. IS0 5408:1983, Cylindrical screw threads - Vocabulary. 3 Definitions For the purp
19、ose of this part of IS0 965 the definitions given in IS0 5408 apply. 4 Designation A screw thread in conformity with this part of IS0 965 shall be designated according to IS0 965-1. 5 Limits of sizes The root contour shall not at any point transgress the basic profile. For coated threads, the tolera
20、nces apply to the parts before coating, unless otherwise stated. After coating, the actual thread profile shall not at any point transgress the maximum material limits for position H or h respectively. NOTE These provisions are intended for thin coatings, for example those obtained by electroplating
21、. Page 3 IS0 965-2 : 1998 Thread Length of thread engagement Pitch diameter Minor diameter D2 Dl over up to and max. min. max. min. M1 0,6 1,7 0,894 0,838 0,785 0,729 M1.2 0,6 1,7 1,094 1,038 0,985 0,929 M1,4 0,7 2 1,265 1,205 1,142 1,075 M1,6 03 2,6 1,458 1,373 1,321 1,221 including Mi ,8 0,8 2,6 1
22、,658 1,573 1,521 1,421 M2 1 3 1,830 1,740 1,679 1,567 M2,5 13 33 2,303 2,208 2,138 2,013 M3 1,5 4,5 2,775 2,675 2,599 2,459 M3.5 1,7 5 3,222 3,110 3,010 2,850 M4 2 6 3,663 3,545 3,422 3,242 M5 25 7,5 4,605 4,480 4,334 4,134 M6 3 9 5,500 5,350 5,153 4,917 M7 3 9 6,500 6,350 6,153 5,917 M8 4 12 7,348
23、7,188 6,912 6,647 Mi O 5 15 9,206 9,026 8,676 8,376 M12 6 18 11,063 10,863 10,441 10,106 M14 8 24 12,913 12,701 12,210 11,835 MI 6 8 24 14.91 3 14,701 14,210 13,835 M18 10 30 16,600 16,376 15,744 15,294 M20 10 30 18,600 18,376 17,744 17,294 M22 10 30 20,600 20,376 19,744 19,294 M24 12 36 22,316 22,0
24、51 21,252 20,752 M27 12 36 25,316 25,051 24,252 23,752 M30 15 45 28,007 27,727 26,771 26,211 M33 15 45 31,007 30,727 29,771 29,211 M36 18 53 33,702 33,402 32,270 31,670 M39 18 53 36,702 36,402 35,270 34,670 M42 21 63 39,392 39,077 37,799 37,129 M45 21 63 42,392 42,077 40,799 40,129 M48 24 71 45,087
25、44,752 43,297 42,587 M52 24 71 49,087 48,752 47,297 46,587 M56 28 85 52,783 52,428 50,796 50,046 M60 28 85 56,783 56,428 54,796 54,046 M64 32 95 60,478 60,103 58,305 57,505 - 5.1 Internal threads - Coarse thread series Tolerance quality: medium Thread engagement group: normal Tolerance class: 5H for
26、 threads up to and including MI ,4 6H for threads over MI ,4 Table 1 Dimensions in miliimetres I Page 4 IS0 965-2 : 1998 5.2 External threads - Coarse thread series Tolerance quality: medium Thread engagement group: normal Tolerance class: 6h for threads up to and including MI ,4 6g for threads over
27、 MI ,4 Table 2 M1 M1,2 M1,4 M1,6 M1,8 M2 M2,5 M3 M3,5 M4 M5 M6 M7 M8 M10 MI2 MI4 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52 M56 M60 M64 a See IS0 965-1. Dimensions in millimetres over up to and max. min. max. 46 1,7 1,000 0,933 0,838 0,6 1,7 1,200 1,133 1,038 0,7 2 1,400 1,325 1,205 0,8
28、 2,6 1,581 1,496 1,354 0,8 2,6 1,781 1,696 1,554 1 3 1,981 1,886 1,721 13 33 2,480 2,380 2,188 1,5 4s 2,980 2,874 2,655 1,7 5 3,479 3,354 3,089 2 6 3,978 3,838 3,523 2,s 73 4,976 4,826 4,456 3 9 5,974 5,794 5,324 3 9 6,974 6,794 6,324 4 12 7,972 7,760 7,160 5 15 9,968 9,732 8,994 6 18 11,966 11,701
29、10,829 8 24 13,962 13,682 12,663 8 24 15,962 15,682 14,663 10 30 17,958 17,623 16,334 10 30 19,958 19,623 18,334 10 30 21,958 21,623 20,334 12 36 23,952 23,577 22,003 12 36 26,952 26,577 25,003 15 45 29,947 29,522 27,674 15 45 32,947 32,522 30,674 18 53 35,940 35,465 33,342 18 53 38,940 38,465 36,34
30、2 21 63 41,937 41,437 39,014 21 63 44,937 44,437 42,014 24 71 47,929 47,399 44,681 24 71 51,929 51,399 48,681 28 85 55,925 55,365 52,353 28 85 59,925 59,365 56,353 32 95 63,920 63,320 60,023 including Length of thread engagement Major diameter Pitch diameter Root radius I Thread I i 0,785 0,985 1,14
31、9 0,031 0,031 0.038 1,291 1,491 1.654 0,044 0,044 0.050 2,117 2,580 3,004 3,433 4,361 521 2 6,212 7,042 8,862 10,679 12,503 14,503 0,056 0,063 0,075 0,088 o, 1 O0 O, 125 0,125 0,156 0,188 0,219 0,250 0,250 16,164 18,164 20,164 0,313 0,313 0,313 21,803 24,803 27,462 0,375 0,375 0,438 30,462 33,118 36
32、,118 0,438 0,500 0,500 38,778 41,778 44.431 0,563 0,563 0,625 48,431 52,088 56,088 0,625 0,688 0.688 59,743 0,750 Page 5 IS0 965-2 : 1998 Thread Length of thread engagement 5.3 Internal threads - Fine thread series Tolerance quality: medium Thread engagement group: normal Tolerance class: 6H Pitch d
33、iameter Minor diameter B2 4 Table 3 Dimensions in millimetres M8 x 1 MI0 X 1 M10 X 1,25 M12 X 1,25 M12 x 1,5 M14 X 1,5 M16 X 1,5 M18 X 1,5 M18 X 2 over up to and max. including 3 9 7,500 4 12 9,500 4 12 9,348 4,5 13 11,368 43 13 11,216 56 16 13,216 56 16 15,216 56 16 17,216 56 16 16,913 min. 7,350 9
34、,350 9,188 11,188 11,026 13,026 rnax. 7,153 9,153 8,912 10,912 10,676 12,676 15,026 17,026 16.701 14,676 16,676 16.21 O M20 X 1,5 M20 x 2 M22 X 1,5 M22 X 2 M24 X 2 M27 X 2 M30 X 2 M33 x 2 M36 X 3 M39 X 3 M42 X 3 M45 x 3 M48 X 3 M52 X 4 M56 X 4 M60 X 4 M64 X 4 56 16 19,216 5,6 16 18,913 5.6 16 21,216
35、 56 16 20,913 8,5 25 22,925 8,5 25 25,925 8,5 25 28,925 8.5 25 31,925 12 36 34,316 12 36 37,316 12 36 40,316 12 36 43,316 15 45 46,331 19 56 49,717 19 56 53,717 19 56 57,717 19 56 61,717 19,026 18,701 21,026 20,701 22,701 25,701 min. 6,917 8,917 8,647 18,676 18,21 O 20,676 20,21 o 22,210 25,21 O 10,
36、647 10,376 12,376 28,701 31,701 34.051 14,376 16,376 15,835 18,376 17,835 20,376 28,210 31,210 33.252 19,835 21,835 24,835 37,051 40,051 43,051 46,051 49,402 53,402 57,402 61,402 27,835 30,835 32,752 35,752 38,752 41,752 44,752 47,670 51,670 36,252 39,252 42,252 45,252 48,270 52,270 56,270 60,270 55
37、,670 59,670 Page 6 IS0 965-2 : 1998 5.4 External threads - Fine thread series Tolerance quality: medium Thread engagement group: normal Tolerance class: 6g Thread M8 X 1 M10 x 1 MI0 x 1,25 M12 X 1,25 M12 X 1,5 M14 X 1,5 Table 4 Dimensions in millirnetres Length of thread engagement over up toand inc
38、luding 3 9 4 12 4 12 43 13 43 13 56 16 Major diameter d max. min. 7,974 7,794 9,974 9,794 9,972 9,760 1 1,972 11,760 11,968 11,732 i 3,968 13,732 Root radius min. a Pitch diameter li2 max. min. 7,324 7,212 9,324 9,212 9,160 9,042 11,160 i i ,028 10,994 10,854 12,994 12,854 15,968 i 7,968 17,962 19,9
39、68 19,962 21,968 21,962 23,962 26,962 0,125 0,125 0,156 15,732 14,994 14,854 17,732 16,994 16,854 17,682 16,663 16,503 19,732 18,994 18,854 19,682 18,663 18,503 21,732 20,994 20,854 21,682 20,663 20,503 23,682 22,663 22,493 26,682 25,663 25,493 O, 156 0,188 O, 1 88 59,940 63,940 59,465 57,342 57,106
40、 63,465 61,342 61,106 M16 X 1,5 M18 X 1,5 M18 X 2 16 16 16 0,188 0,188 0.250 16 16 16 0,188 0,250 0,188 M20 X 1,5 M20 X 2 M22 x 1,5 M22 x 2 M24 X 2 M27 X 2 0,250 0,250 0,250 16 25 25 M30 X 2 M33 x 2 M36 X 3 25 25 36 29,962 32,962 35,952 29,682 32,682 35,577 28,663 31,663 34,003 28,493 31,493 33,803
41、0,250 0,250 0,375 M39 x 3 M42 X 3 M45 x 3 38,577 41,577 44,577 37,003 40,003 43,003 36,803 39,803 42,803 0,375 0,375 0,375 38,952 41,952 44,952 47,952 51,940 55,940 M48 X 3 M52 X 4 M56 X 4 47,577 51,465 55,465 46,003 49,342 53,342 45,791 49,106 53,106 0,375 0,500 0,500 45 56 19 56 M60 X 4 19 56 M64 X 4 19 56 a See IS0 965-1. 0,500 0,500
