1、DEUTSCHE NORM Auaust 2000 DIN - General purpose IS0 metric screw threads Part 20: Limits of size for 1 mm to 68 mm diameter coarse pitch threads with recommended tolerance classes 13-20 ICs 21.040.10 Supersedes November 1999 edition. Metrisches ISO-Gewinde allgemeiner Anwendung - Teil 20: Grenzmae f
2、r Regelgewinde mit bevorzugten Toleranzklassen - Gewinde-Nenndurchmesser von 1 mm bis 68 mm In keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used throughout as the decimal marker. Foreword This standard has been pre
3、pared by Technical Committee Gewinde of the Normenausschuss Technische Grundlagen (Fundamentals in Technology Standards Committee). Amendments This standard differs from the October 1983 edition as follows: a) For internal threads of 5 mm to 68 mm nominal diameter, tolerance class 7G, and for extern
4、al threads of 5 mm to 7 mm nominal diameter, tolerance class 8e has been included. b) For external threads of 56 mm and 60 mm nominal diameter, the values of the minimum pitch diameter for tolerance class 6e have been corrected (from 52,151 mm to 52,051 mm and from 56,151 mm to 56,051 mm). As compar
5、ed with the November 1999 edition, some printing errors have been corrected. Previo us edit ions DIN 13-43: 1965-08; DIN 13-44: 1966-03; DIN 13-20: 1972-1 1, 1983-1 O, 1999-1 1. All dimensions are in millimetres. 1 Scope This standard applies to general purpose IS0 metric screw threads having the ba
6、sic profile specified in DIN IS0 68-1. It specifies limits of size for 1 mm to 68 mm diameter coarse pitch threads with recommended tolerance classes. 2 Normative references This standard incorporates, by dated or undated reference, provisions from other publications. These normative references are
7、cited at the appropriate places in the text, and the titles of the publications are listed below. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For undated references, the latest
8、edition of the publication referred to applies. DIN 13-1 General purpose IS0 metric screw threads - Nominal sizes for 1 mm to 68 mm diameter coarse pitch threads DIN 13-19 General purpose IS0 metric screw threads - Nominal profiles DIN IS0 68-1 General purpose IS0 screw threads - Basic profile - Par
9、t 1: Metric screw threads DIN IS0 965-1 General purpose IS0 metric screw threads -Tolerances - Part 1 : Principles and basic data DIN IS0 965-2 General purpose IS0 metric screw threads -Tolerances - Part 2: Limits of size for general purpose external and internal screw threads - Medium quality (IS0
10、965-2 : 1998) DIN IS0 965-3 General purpose IS0 metric screw threads -Tolerances - Part 3: Deviations for construc- tional screw threads (IS0 965-3 : 1998) (IS0 68-1 : 1998) (IS0 965-1 : 1998) Continued on pages 2 to 8 Translation by DIN-Sprachendienst. In case of doubt, the German-language original
11、 should be consulted as the authoritative text. No pari of this translation may be reproduced without the prior permission of Ref. No. DIN 13-20 : 2000-0 V Deutsches Institut fur Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, s the exclusive right of sale for German Standards (DIN-
12、Normen). English price group 08 Sales No. 0108 11 .o0 Page 2 DIN 13-20 : 2000-08 3 Limits of size The limits of size for the tolerance classes given in table 1 have been calculated from the nominal sizes specified in DIN 13-1 and from the fundamental deviations and tolerances specified in DIN IS0 96
13、5-1. Limits of size for other tolerance classes may be calculated from the deviations specified in DIN IS0 965-3 See DIN IS0 965-2 for limits of size for screws. bolts and nuts. t- P t P 1 c c 7 F 4 i a, a, + .- s s U O L .?3 E E Z .- C .- Figure 1 : Internal thread with tolerance position H P I- -I
14、 r o + .- a, cn a C .- N QG EL 5 E Z - 2: .- aa : z d i a, a, + .- s s U r o Q + .- E Z .- C .- Figure 3: External thread with position h o I eran ce 4 i a, a, + .- s U Figure 2: Internal thread with tolerance position G I- r o + .- a, cn a C .- N Qd EL 5 E Z - 2: .- aa : z G i a, a, + .- s s U r o
15、Q + .- E Z .- C .- Figure 4: External thread with tolerance position e, f and g -i -e i a, a, + .- s E s r“ U O L .- E .- X l) Maximum calculated taking R as 0,144338 P = H/6 (cf. DIN 13-19), and the minimum, taking R as 0,125 P H/7 (Cf. DIN IS0 965-1). Page 3 DIN 13-20 : 2000-08 Table 1: Limits of
16、size Internal threads External threads Nomi- nal diam- eter, d (= D) - 1 - 1,1 - 1.2 Pitch diameter, D2 Major diameter, d Pitch diameter, d2 Minor diameter, d3 Mini- mum major diam- eter, D 1 1 1,018 1 ,I 1 ,I 1,118 Minor diameter, Dl Pitch P - 0,25 - 0,25 _ 0,25 roler ance clas: - 4H 5H 5G - 4H 5H
17、5G roler- ance class - 4h 6h 5e 5f Min. 0,838 0,838 0,856 - - 0,938 0,938 0,956 Max. 0,883 0,894 0,912 - - 0,983 0,994 1 ,o1 2 Min. 0,729 0,729 0,747 - - 0,829 0,829 0,847 _ 0,929 0,929 0.947 Max. 0,774 0,785 0,803 - - 0,874 0,885 0,903 - 0,974 0,985 1,003 - 1 ,I 28 1,142 1 .I 60 Max. 1 1 0,955 0,96
18、7 1 ,I 1 ,I 1,055 1,067 - - 12 12 1 ,I 55 1 ,I 67 _ 1,4 1,4 1,354 1,367 Min. 0,958 0,933 0,901 0,913 1,058 1,033 1,001 1,013 1,158 1,133 1,101 1,113 1,352 1,325 1,294 1,307 - - - - Max. 0,838 0,838 0,793 0,805 0,938 0,938 0,893 0,905 1,038 1,038 0,993 1,005 1,205 1,205 1,159 1,172 - - - - Min. 0,804
19、 0,785 0,751 0,763 - Max. 0,693 0,693 0,648 0,660 - Min. 0,649 0,630 0,596 0,608 - 4h 6h 5e 5f 4h 6h 5e 5f 4h 6h 5e 5f _ 0,904 0,885 0,851 0,863 1,004 0.985 0,951 0,963 1,169 1,149 1,114 1,127 - - 0,793 0,793 0,748 0,760 0,893 0,893 0,848 0,860 1,032 1,032 0,986 0,999 0,749 0,730 0,696 0,708 0,849 0
20、,830 0,796 0,808 0,984 0,964 0,929 0,942 - - 4H 5H 5G 1,038 1,038 1 .O56 1,083 1,094 1,112 4H 5H 5G 1,205 1,205 1.223 1,253 1,265 1,283 1,075 1,075 1 .O93 0,35 4H 5H 6H 6G 1,373 1,373 1,373 1,392 1,573 1,573 1,573 1,592 - 1,426 1,440 1,458 1,477 1,221 1,221 1,221 1,240 1,284 1,301 1,321 1,340 4h 6g
21、6e 6f 1,6 1,554 1,566 1,581 1,547 1,496 1,469 1,481 1,373 1,354 1,327 1,339 1,333 1,291 1,264 1,276 1 ,I 70 1,151 1,124 1,136 1,117 1,075 1,048 1,060 0,35 4H 5H 6H 6G 1,626 1,640 1,658 1,677 1,421 1,421 1,421 1,440 1,484 1,501 1,521 1,540 4h 6g 6e 6f 1,8 1,781 1,754 1,766 1,747 1,696 1,669 1,681 1,5
22、73 1,554 1,527 1,539 1,533 1,491 1.464 1,476 1,370 1,351 1,324 1,336 1,317 1,275 1,248 1,260 2 0.4 5H 6H 6G 2 2 2,019 1,740 1,740 1,759 1,811 1,830 1,849 1,567 1,567 1,586 1,657 1,679 1,698 4h 6g 6e 6f 2 1,981 1,952 1,966 1,940 1,886 1,857 1,871 1,740 1,721 1,692 1,706 1,698 1,654 1,625 1,639 1,863
23、1,817 1,789 1,802 1,509 1,490 1,461 1,475 1,648 1,628 1,600 1,613 _ 1,451 1,407 1,378 1,392 2.2 0.45 5H 6H 6G 1,908 1,908 1,928 1,983 2,003 2,023 1,713 1,713 1,733 1,813 1,838 1,858 4h 6g 6e 6f 22 2,180 2,152 2,165 2,137 2,080 2,052 2,065 1,908 1,888 1,860 1,873 1,586 1,540 1,512 1,525 2.5 0.45 5H 6
24、H 6G 5H 6H 7H 6G - 2,208 2,208 2,228 2,283 2,303 2,323 2,013 2,013 2,033 2,113 2,138 2,158 4h QI 6e 6f 23 2,480 2,452 2,465 2,437 2,380 2,352 2,365 2,208 2,188 2,160 2,173 2,163 2,117 2,089 2.1 02 1,948 I ,928 1,900 1,913 1,886 1,840 1,812 1,825 3 - 2,675 2,675 2,675 2,695 - 2,755 2,775 2,800 2,795
25、- 2,459 2,459 2,459 2,479 - 2,571 2,599 2,639 2,619 - 4h 69 6e 6f - 3 2,980 2,950 2,964 - 2,933 2,874 2,844 2,858 - 2,675 2,655 2,625 2,639 - 2,627 2,580 2,550 2,564 - 2,387 2,367 2,337 2,351 - 2,320 2,273 2,243 2,257 - 3 3 3 3,020 (continued) Page 4 DIN 13-20 : 2000-08 Table 1 (continued) Internal
26、threads External threads Nomi- nal diam- eter, d (= D) 3,5 - - 4 Pitch diameter, D2 Minor diameter, Dl Major diameter, d Pitch diameter, d2 Minor diameter, d3 Mini- mum major diam- eter, D - 3,5 395 3,5 3,521 4 4 4 4,022 Toler ance clas: - 5H 6H 7H 6G 5H 6H 7H 6G - Toler- ance class - 4h 69 6e 6f 4h
27、 - 6g 6e 6f 4h 69 6e 6f Min. 3,l 1 O 3,11 O 3,110 3,131 - - 3,545 3,545 3,545 3,567 Max. 2,975 3,010 3.050 3,031 3,382 3,422 3,466 3.444 - - Max. 33 3,479 3,447 3,464 4 3,978 3,944 3,962 4-5 4,478 4,444 4,462 - - - Max. 3,l 1 O 3,089 3,057 3,074 - - 3,545 3,523 3,489 3,507 4,Ol 3 3,991 3,957 3,975 -
28、 Min. 3,057 3,004 2,972 2,989 3,489 3,433 3,399 3,417 3,957 3,901 3,867 3,885 - - - Min. 2,688 2,635 2,603 2,620 3,058 3,002 2,968 2,986 - - Max. Min. 3,200 2,850 3,222 2,850 3,250 2,850 3,243 2,871 3,640 3,242 3,663 3,242 3,695 3,242 3,685 3,264 4,108 3,688 4,131 3,688 4,163 3,688 4.153 3,710 4,580
29、 4,134 4,605 4,134 4,640 4,134 4,629 4,158 4,664 4,158 5,468 4,917 5,500 4,917 5,540 4,917 5,526 4,943 5,566 4,943 Min. 3,420 3,354 3.322 3,339 3,91 O 3,838 3,804 3,822 4,41 O 4,338 4,304 4,322 4,905 4,826 4,740 4,790 4,704 4,812 5,888 5,794 5,694 5,760 5,660 5,780 - - - - Max. 2,764 2,743 2,711 2,7
30、28 3,141 3,119 3,085 3,103 3,580 3,558 3,524 3,542 - - 4,5 0,75 5H 6H 7H 6G 4,Ol 3 4,Ol 3 4,013 4,035 3,838 3,878 3,924 3,900 3,495 3,439 3,405 3,423 4,5 4,5 4,5 4,522 5 5 5 5,024 5,024 6 6 6 6,026 6,026 5 - 6 5H 6H 7H 6G 7G - 5H 6H 7H 6G 7G 4,480 4,480 4,480 4,504 4,504 - 5,350 5,350 5,350 5,376 5,
31、376 4,294 4,334 4,384 4,358 4,408 - 5,107 5,153 5,217 5,179 5,243 4h 6g 89 6e 8e 6f 4h - 69 8g 6e 8e 6f 5 4,976 4,976 4,940 4,940 4,962 6 5,974 5,974 5,940 5,940 5,960 - 4,480 4,456 4,456 4,420 4,420 4,442 5,350 5,324 5,324 5,290 5,290 5,31 O - 4,420 4,361 4,306 4,325 4,270 4,347 5,279 5,212 5,144 5
32、,178 5,110 5,198 6,279 6,212 6,144 6,178 6,110 6,198 - - 3,928 3,869 3,814 3,833 3,778 3,855 4,019 3,995 3,995 3,959 3,959 3,981 4,773 4,747 4,747 4,713 4-71 3 4,733 5,773 5,747 5,747 5,713 5,713 5,733 - 4,663 4,596 4,528 4,562 4,494 4,582 5,663 5,596 5,528 5,562 5,494 5,582 - 7 1 5H 6H 7H 6G 7G 7 7
33、 7 7,026 7,026 6,350 6,350 6,350 6,376 6,376 6,107 6,153 6,217 6,179 6,243 4h 69 89 6e 8e 6f 7 6,974 6,974 6,940 6,940 6,960 6,888 6,794 6,694 6,760 6,660 6,780 6,350 6,324 6,324 6,290 6,290 631 O 6,468 5,917 6,500 5,917 6,540 5,917 6,526 5,943 6,566 5,943 7,313 6,647 7,348 6,647 7,388 6,647 7,376 6
34、,675 7,416 6,675 8,313 7,647 8,348 7,647 8,388 7,647 8,376 7,675 8,416 7,675 8 1.25 5H 6H 7H 6G 7G 7,188 7,188 7,188 7,216 7.21 6 - 8,188 8,188 8,188 8,216 8,216 6,859 6,912 6,982 6,940 7,Ol O 4h 6g 89 6e 8e 6f 8 7,972 7,972 7,937 7,937 7,958 7,868 7,760 7,637 7,725 7,602 7,746 7,188 7,160 7,160 7,1
35、25 7,125 7,146 7,113 7,042 6,970 7,007 6,935 7,028 6,466 6,438 6,438 6,403 6,403 6,424 6,343 6,272 6,200 6,237 6,165 6,258 8 8 8 8,028 8,028 9 9 9 9,028 9,028 9 1.25 5H 6H 7H 6G 7G 7,859 7,912 7,982 7,940 8.01 O 4h 6g 89 6e 8e 6f 9 8,972 8,972 8,937 8,937 8,958 8,868 8,760 8,637 8,725 8,602 8,746 8,
36、188 8,160 8,160 8,125 8,125 8,146 8,113 8,042 7,970 8,007 7,935 8,028 7,466 7,438 7,438 7,403 7,403 7,424 7,343 7,272 7,200 7,237 7,165 7,258 (continued) Page 5 DIN 13-20 : 2000-08 Table 1 (continued) Internal threads External threads Nomi na1 diam. eter, d (= DI - 10 Mini- mum major diam- eter, D -
37、 10 10 10 10,032 10,032 Pitch diameter, D2 Minor diameter, Dl Major diameter, d Pitch diameter, d2 Minor diameter, d3 Toler- ance class - 5H 6H 7H 6G 7G Toler- ance class - 4h 69 89 6e 8e 6f Pitch, P - 1.5 Min. 9,026 9,026 9,026 9,058 9,058 - Max. 9,166 9,206 9,250 9,238 9,282 - Min. 8,376 8,376 8,3
38、76 8,408 8,408 - Max. 8,612 8,676 8,751 8,708 8,783 - Max. - 10 9,968 9,968 9,933 9,933 9,955 Min. 9,850 9,732 9,593 9,697 9,558 9,719 - Max. 9,026 8,994 8,994 8,959 8,959 8,981 - Min. 8,941 8,862 8,782 8,827 8,747 8,849 - Max. 8,160 8,128 8,128 8,093 8,093 8,115 - Min. 8,017 7,938 7,858 7,903 7,823
39、 7,925 - 11 1.5 5H 6H 7H 6G 7G 11 11 11 1 1,032 1 1,032 10,026 10,026 10,026 10,058 10,058 10,166 10,206 10,250 10,238 10,282 9,376 9,376 9,376 9,408 9,408 9,612 9,676 9,751 9,708 9,783 4h 69 89 6e 8e 6f 11 10,968 10,968 10,933 10,933 10,955 10,026 9,994 9,994 9,959 9,959 9,981 9,941 9,862 9,782 9,8
40、27 9,747 9,849 9,160 9,128 9,128 9,093 9,093 9,l 15 9,017 8,938 8,858 8,903 8,823 8,925 10,850 10,732 10,593 10,697 10,558 10,719 11,830 11,701 11,541 11,664 11,504 11,687 13,820 13,682 13,512 13,649 13,479 13,668 12 1,75 5H 6H 7H 6G 7G 12 12 12 12,034 12.034 10,863 10,863 10,863 10,897 10.897 11,02
41、3 11,063 11,113 1 1,097 11.147 10,106 10,106 10,106 10,140 10,140 10,371 10,441 10,531 10,475 10.565 4h 6g 89 6e 8e 6f 12 1 1,966 1 1,966 1 1,929 1 1,929 1 1,952 10,863 10,829 10,829 10,792 10,792 10,815 10,768 10,679 10,593 10,642 10,556 10,665 9,853 9,819 9,819 9,782 9,782 9,805 9,691 9,602 9,516
42、9,565 9,479 9,588 14 5H 6H 7H 6G 7G 12,701 12,701 12,701 12,739 12.739 12,871 12,913 12,966 12,951 I 3.004 I 1,835 I 1,835 I 1,835 11,873 I 1,873 12,135 12,210 12,310 12,248 12.348 4h 69 89 6e 8e 6f 14 13,962 13,962 13,929 13,929 13,948 12,701 12,663 12,663 12,630 12,630 12,649 12,601 12,503 12,413
43、12,470 12,380 12,489 I 1,546 I 1,508 I 1,508 I 1,475 I 1,475 11,494 11,369 11,271 11,181 1 1,238 11,148 11 -257 2 2 14 14 14 14,038 14,038 16 16 16 16,038 16,038 5H 6H 7H 6G 7G 14,701 14,701 14,701 14,739 14,739 14,871 14,913 14,966 14,951 15,004 13,835 13,835 13,835 13,873 13,873 14,135 14,210 14,3
44、10 14,248 14,348 16 15,962 15,962 15,929 15,929 15,948 18 17,958 17,958 17,920 17,920 17,942 - 14,701 14,663 14,663 14,630 14,630 14,649 16,376 16,334 16,334 16,296 16,296 16,318 18,376 18,334 18,334 18,296 18,296 18,318 - - 14,601 14,503 14,413 14,470 14,380 14,489 16,270 16,164 16,069 16,126 16,03
45、1 16,148 - 13,546 13,508 13,508 13,475 13,475 13,494 14,933 - 14,891 14,891 14,853 14,853 14,875 13,369 13,271 13,181 13,238 13,148 13,257 14,731 14,625 14,530 14,587 14,492 14,609 - 16 18 - 20 4h 6g 89 6e 8e 6f 4h 6g 8g 6e 8e 6f 15,820 15,682 15,512 15,649 15,479 15,668 17,788 17,623 17,428 17,585
46、17,390 17,607 5H 6H 7H 6G 7G - 5H 6H 7H 6G 7G 16,376 16,376 16,376 16,418 16,418 - 18,376 18,376 18,376 18,418 18,418 16,556 16,600 16,656 16,642 16,698 - 18,556 18,600 18,656 18,642 I 8,698 15,294 15,294 15,294 15,336 15,336 15,649 15,744 15,854 15,786 15,896 - 17,649 17,744 17,854 17,786 17,896 18
47、 18 18 18,042 18,042 20 20 20 20,042 20,042 17,294 17,294 17,294 17,336 17,336 4h 6g 89 6e 8e 6f 20 19,958 19,958 19,920 19,920 19,942 19,788 19,623 19,428 19,585 19,390 19,607 18,270 18,164 18,069 18,126 18,031 18,148 16,933 16,891 16,891 I 6,853 16,853 16,875 16,731 16,625 16,530 16,587 16,492 16,
48、609 (continued) Page 6 DIN 13-20 : 2000-08 Table 1 (continued) - Nomi na1 diam. eter, d (= DI - 22 Internal threads External threads Pitch diameter, D2 Minor diameter, Dl Major diameter, d Minor diameter, d3 Mini- mum major diam- eter, D 22 22 22 22,042 22,042 Pitch diameter, d2 Max. Min. 20,376 20,
49、270 20,334 20,164 20,334 20,069 20,296 20,126 20,296 20,031 20,318 20,148 22,051 21,926 22,003 21,803 22,003 21,688 21,966 21,766 21,966 21,651 21,988 21,788 Toler ance clas: - 5H 6H 7H 6G 7G Toler- ance class - 4h 6g 8g 6e 8e 6f Pitch, P - 2.5 Min. 20,376 20,376 20,376 20,418 20,418 - Max. 20,556 20,600 20,656 20,642 20,698 - Min. 19,294 19,294 19,294 19,336 19,336 - Max. 19,649 19,744 19,854 19,786 19,896 - Max. - 22 21,958 21,958 21,920 21,920 21,942 Min. 21,788 21,623 21,428 21,585 21,390 21,607 - Max. 18,933 18,891 18,891 18,853 18,853 18,875 - Min. 18,731 18,6
