1、 DEUTSCHE NORMAugust 2005DIN 13-21 ICS 21.040.10 Supersedes DIN 13-21:1983-10 General purpose ISO metric screw threads Part 21: Limits of sizes for fine pitch threads with preferred tolerance classes Nominal thread diameters of 1 mm to 24,5 mm Metrisches ISO-Gewinde allgemeiner Anwendung Teil 21: Gr
2、enzmae fr Feingewinde mit bevorzugten Toleranzklassen Gewinde-Nenndurchmesser von 1 mm bis 24,5 mm Document comprises 19 pagesTranslation by DIN-Sprachendienst. In case of doubt, the German-language original should be consulted as the authoritative text. No part of this translation may be reproduced
3、 without prior permission of DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen). English price group 12 www.din.de www.beuth.de !,ni b) the minimum limit of size of the external diameter of an e
4、xternal thread M1,4 0,25 6 h has been corrected from 1,433 to 1,333; c) in the German edition of this standard, the following terminology has been modified. The first two terms have also been changed in the English translation: Innengewinde (internal thread) replaces Muttergewinde (nut thread), Auen
5、gewinde (external thread) replaces Bolzengewinde (bolt thread), Mindestma (minimum limit of size) replaces Kleinstma, DIN 13-21:2005-08 3 Hchstma (maximum limit of size) replaces Grtma, Toleranzklasse (tolerance class) replaces Toleranzfeld; d) the normative references have been updated; e) the stan
6、dard has been editorially revised, Previous editions DIN 13-43:1965-08 DIN 13-44:1966-03 DIN 13-21:1973-02, 1983-10 1 Scope This standard applies to ISO general purpose screw threads with a basic profile as in DIN ISO 68-1. It sets out the limits of size for fine pitch threads with nominal diameters
7、 of 1 mm to 24,5 mm, with preferred tolerance classes. 2 Normative references This standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the titles of the publications are listed below
8、. 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 edition of the publication referred to (including any amendments) applies. DIN 13-2, General pur
9、pose ISO metric screw threads Part 2: Nominal sizes for 0,2 mm, 0,25 mm and 0,35 mm fine pitch threads with diameters from 1 mm to 50 mm DIN 13-3, General purpose ISO metric screw threads Part 3: Nominal sizes for 0,5 mm fine pitch threads with diameters from 3,5 mm to 90 mm DIN 13-4, General purpos
10、e ISO metric screw threads Part 4: Nominal sizes for 0,75 mm fine pitch threads with diameters from 5 mm to 110 mm DIN 13-5, General purpose ISO metric screw threads Part 5: Nominal sizes for 1 mm and 1,25 mm fine pitch threads with diameters from 7,5 mm to 200 mm DIN 13-6, General purpose ISO metri
11、c screw threads Part 6: Nominal sizes for 1,5 mm fine pitch threads with diameters from 12 mm to 300 mm DIN 13-7, General purpose ISO metric screw threads Part 7: Nominal sizes for 2 mm fine pitch threads with diameters from 17 mm to 300 mm DIN 2244, Screw threads Terms and screw thread elements for
12、 parallel screw threads DIN ISO 68-1, ISO general purpose screw threads Basic profile Part 1: Metric screw threads DIN ISO 965-1, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data DIN 13-21:2005-08 4 DIN ISO 965-3, ISO general purpose metric screw threads Toleranc
13、es Part 3: Deviations for constructional screw threads 3 Terms and definitions For the purpose of this standard, the terms and definitions used in DIN 2244 shall apply*). 4 Limits of size The limits of size for fine pitch threads with preferred tolerance classes (cf. DIN ISO 965-1) have been calcula
14、ted on the basis of the nominal dimensions as in DIN 13-2 to DIN 13-7, applying the limit deviations and tolerances as in DIN ISO 965-1. Limits of size for threads with tolerance classes not covered in this standard may be calculated using the limit deviations as in DIN ISO 965-3. The limits for the
15、 root radius of the external thread are specified in DIN ISO 965-1 as R = 0,144 34 P = H/6 for the maximum limit of size and Rmin= 0,125 P H/7 for the minimum limit of size of the minor diameter d3. Key D Major diameter D1Minor diameter D2Pitch diameter aMinimum limit of size bMaximum limit of size
16、Figure 1 Internal thread with tolerance position H *) Translators note: Standard only available in German. DIN 13-21:2005-08 5 Key d Major diameter d2Pitch diameter d3Minor diameter aMinimum limit of size bMaximum limit of size Figure 2 External thread with tolerance position h Key d Major diameter
17、d2Pitch diameter d3Minor diameter aMinimum limit of size bMaximum limit of size Figure 3 External thread with tolerance position g DIN 13-21:2005-08 6 Table 1 Limits of size Dimensions in millimetres Internal thread External thread Nomi-nal thread diam-eter Pitch Major diam-eter Pitch diameter Minor
18、 diameter Major diameter Pitch diameter Minor diametera d = D P D D2D1d d2d3Toler-ance class min. min. max. min. max. Toler-ance class max. min. max. min. max. min. 0,2 4H 1,000 0,870 0,910 0,783 0,821 4h 1,000 0,964 0,870 0,840 0,755 0,718 1 0,2 6h 1,000 0,944 0,870 0,822 0,755 0,700 0,2 4H 1,100 0
19、,970 1,010 0,883 0,921 4h 1,100 1,064 0,970 0,940 0,855 0,818 1,1 0,2 6h 1,100 1,044 0,970 0,922 0,855 0,800 0,2 4H 1,200 1,070 1,110 0,983 1,021 4h 1,200 1,164 1,070 1,040 0,955 0,918 1,2 0,2 6h 1,200 1,144 1,070 1,022 0,955 0,900 0,2 4H 1,400 1,270 1,310 1,183 1,221 4h 1,400 1,364 1,270 1,240 1,15
20、5 1,118 0,2 6h 1,400 1,344 1,270 1,222 1,155 1,100 0,25 4H 1,400 1,238 1,283 1,129 1,174 4h 1,400 1,358 1,238 1,204 1,093 1,049 1,4 0,25 5H 1,400 1,238 1,294 1,129 1,185 6h 1,400 1,333 1,238 1,185 1,093 1,030 0,2 4H 1,600 1,470 1,512 1,383 1,421 4h 1,600 1,564 1,470 1,438 1,355 1,316 0,2 6g 1,583 1,
21、527 1,453 1,403 1,338 1,281 0,25 4H 1,600 1,438 1,486 1,329 1,374 4h 1,600 1,558 1,438 1,402 1,293 1,247 1,6 0,25 6g 1,582 1,515 1,420 1,364 1,275 1,209 0,2 4H 1,800 1,670 1,712 1,583 1,621 4h 1,800 1,764 1,670 1,638 1,555 1,516 0,2 6g 1,783 1,727 1,653 1,603 1,538 1,481 0,25 4H 1,800 1,638 1,686 1,
22、529 1,574 4h 1,800 1,758 1,638 1,602 1,493 1,447 1,8 0,25 6g 1,782 1,715 1,620 1,564 1,475 1,409 0,2 4H 2,000 1,870 1,912 1,783 1,821 4h 2,000 1,964 1,870 1,838 1,755 1,716 0,2 6g 1,983 1,927 1,853 1,803 1,738 1,681 0,25 4H 2,000 1,838 1,886 1,729 1,774 4h 2,000 1,958 1,838 1,802 1,693 1,647 0,25 6g
23、 1,982 1,915 1,820 1,764 1,675 1,609 0,35 4H 2,000 1,773 1,826 1,621 1,684 4h 2,000 1,947 1,773 1,733 1,571 1,518 2 0,35 6H 2,000 1,773 1,858 1,621 1,721 6g 1,981 1,896 1,754 1,691 1,552 1,476 0,2 4H 2,200 2,070 2,112 1,983 2,021 4h 2,200 2,164 2,070 2,038 1,955 1,916 0,2 6g 2,183 2,127 2,053 2,003
24、1,938 1,881 0,25 4H 2,200 2,038 2,086 1,929 1,974 4h 2,200 2,158 2,038 2,002 1,893 1,847 0,25 6g 2,182 2,115 2,020 1,964 1,875 1,809 0,35 4H 2,200 1,973 2,026 1,821 1,884 4h 2,200 2,147 1,973 1,933 1,771 1,718 2,2 0,35 6H 2,200 1,973 2,058 1,821 1,921 6g 2,181 2,096 1,954 1,891 1,752 1,676 0,2 4H 2,
25、500 2,370 2,412 2,283 2,321 4h 2,500 2,464 2,370 2,338 2,255 2,216 0,2 6g 2,483 2,427 2,353 2,303 2,238 2,181 0,25 4H 2,500 2,338 2,386 2,229 2,274 4h 2,500 2,458 2,338 2,302 2,193 2,147 0,25 6g 2,482 2,415 2,320 2,264 2,175 2,109 0,35 4H 2,500 2,273 2,326 2,121 2,184 4h 2,500 2,447 2,273 2,233 2,07
26、1 2,018 2,5 0,35 6H 2,500 2,273 2,358 2,121 2,221 6g 2,481 2,396 2,254 2,191 2,052 1,976 DIN 13-21:2005-08 7 Table 1 (continued) Dimensions in millimetresInternal thread External thread Nomi-nal thread diam-eter Pitch Major diam-eter Pitch diameter Minor diameter Major diameter Pitch diameter Minor
27、diametera d = D P D D2D1d d2d3Toler-ance class min. min. max. min. max. Toler-ance class max. min. max. min. max. min. 0,2 4H 3,000 2,870 2,915 2,783 2,821 4h 3,000 2,964 2,870 2,836 2,755 2,714 0,2 6g 2,983 2,927 2,853 2,800 2,738 2,678 0,25 4H 3,000 2,838 2,888 2,729 2,774 4h 3,000 2,958 2,838 2,8
28、00 2,693 2,645 0,25 6g 2,982 2,915 2,820 2,760 2,675 2,605 0,35 4H 3,000 2,773 2,829 2,621 2,684 4h 3,000 2,947 2,773 2,731 2,571 2,516 3 0,35 6g 2,981 2,896 2,754 2,687 2,552 2,472 0,2 4H 3,500 3,370 3,415 3,283 3,321 4h 3,500 3,464 3,370 3,336 3,255 3,214 0,2 6g 3,483 3,427 3,353 3,300 3,238 3,178
29、 0,25 4H 3,500 3,338 3,388 3,229 3,274 4h 3,500 3,458 3,338 3,300 3,193 3,145 0,25 6g 3,482 3,415 3,320 3,260 3,175 3,105 0,35 4H 3,500 3,273 3,329 3,121 3,184 4h 3,500 3,447 3,273 3,231 3,071 3,016 0,35 6g 3,481 3,396 3,254 3,187 3,052 2,972 0,5 5H 3,500 3,175 3,255 2,959 3,071 4h 3,500 3,433 3,175
30、 3,127 2,887 2,820 0,5 6H 3,500 3,175 3,275 2,959 3,099 6g 3,480 3,374 3,155 3,080 2,867 2,773 3,5 0,5 7H 3,500 3,175 3,300 2,959 3,139 0,2 4H 4,000 3,870 3,915 3,783 3,821 4h 4,000 3,964 3,870 3,836 3,755 3,714 0,2 6g 3,983 3,927 3,853 3,800 3,738 3,678 0,25 4H 4,000 3,838 3,888 3,729 3,774 4h 4,00
31、0 3,958 3,838 3,800 3,693 3,645 0,25 6g 3,982 3,915 3,820 3,760 3,675 3,605 0,35 4H 4,000 3,773 3,829 3,621 3,684 4h 4,000 3,947 3,773 3,731 3,571 3,516 0,35 6g 3,981 3,896 3,754 3,687 3,552 3,472 0,5 5H 4,000 3,675 3,755 3,459 3,571 4h 4,000 3,933 3,675 3,627 3,387 3,320 0,5 6H 4,000 3,675 3,775 3,
32、459 3,599 6g 3,980 3,874 3,655 3,580 3,367 3,273 4 0,5 7H 4,000 3,675 3,800 3,459 3,639 0,2 4H 4,500 4,370 4,415 4,283 4,321 4h 4,500 4,464 4,370 4,336 4,255 4,214 0,2 6g 4,483 4,427 4,353 4,300 4,238 4,178 0,25 4H 4,500 4,338 4,388 4,229 4,274 4h 4,500 4,458 4,338 4,300 4,193 4,145 0,25 6g 4,482 4,
33、415 4,320 4,260 4,175 4,105 0,35 4H 4,500 4,273 4,329 4,121 4,184 4h 4,500 4,447 4,273 4,231 4,071 4,016 0,35 6g 4,481 4,396 4,254 4,187 4,052 3,972 0,5 5H 4,500 4,175 4,255 3,959 4,071 4h 4,500 4,433 4,175 4,127 3,887 3,820 0,5 6H 4,500 4,175 4,275 3,959 4,099 6g 4,480 4,374 4,155 4,080 3,867 3,773
34、 4,5 0,5 7H 4,500 4,175 4,300 3,959 4,139 0,2 4H 5,000 4,870 4,915 4,783 4,821 4h 5,000 4,964 4,870 4,836 4,755 4,714 0,2 6g 4,983 4,927 4,853 4,800 4,738 4,678 0,25 4H 5,000 4,838 4,888 4,729 4,774 4h 5,000 4,958 4,838 4,800 4,693 4,645 5 0,25 6g 4,982 4,915 4,820 4,760 4,675 4,605 DIN 13-21:2005-0
35、8 8 Table 1 (continued) Dimensions in millimetresInternal thread External thread Nomi-nal thread diam-eter Pitch Major diam-eter Pitch diameter Minor diameter Major diameter Pitch diameter Minor diametera d = D P D D2D1d d2d3Toler-ance class min. min. max. min. max. Toler-ance class max. min. max. m
36、in. max. min. 0,35 4H 5,000 4,773 4,829 4,621 4,684 4h 5,000 4,947 4,773 4,731 4,571 4,516 0,35 6g 4,981 4,896 4,754 4,687 4,552 4,472 0,5 5H 5,000 4,675 4,755 4,459 4,571 4h 5,000 4,933 4,675 4,627 4,387 4,320 0,5 6H 5,000 4,675 4,775 4,459 4,599 6g 4,980 4,874 4,655 4,580 4,367 4,273 0,5 7H 5,000
37、4,675 4,800 4,459 4,639 0,75 5H 5,000 4,513 4,608 4,188 4,338 4h 5,000 4,910 4,513 4,457 4,080 3,995 0,75 6H 5,000 4,513 4,631 4,188 4,378 6g 4,978 4,838 4,491 4,401 4,058 3,939 5 0,75 7H 5,000 4,513 4,663 4,188 4,424 0,2 4H 5,500 5,370 5,415 5,283 5,321 4h 5,500 5,464 5,370 5,336 5,255 5,214 0,2 6g
38、 5,483 5,427 5,353 5,300 5,238 5,178 0,25 4H 5,500 5,338 5,388 5,229 5,274 4h 5,500 5,458 5,338 5,300 5,193 5,145 0,25 6g 5,482 5,415 5,320 5,260 5,175 5,105 0,35 4H 5,500 5,273 5,329 5,121 5,184 4h 5,500 5,447 5,273 5,231 5,071 5,016 0,35 6g 5,481 5,396 5,254 5,187 5,052 4,972 0,5 5H 5,500 5,175 5,
39、255 4,959 5,071 4h 5,500 5,433 5,175 5,127 4,887 4,820 0,5 6H 5,500 5,175 5,275 4,959 5,099 6g 5,480 5,374 5,155 5,080 4,867 4,773 0,5 7H 5,500 5,175 5,300 4,959 5,139 0,75 5H 5,500 5,013 5,108 4,688 4,838 4h 5,500 5,410 5,013 4,957 4,580 4,495 0,75 6H 5,500 5,013 5,131 4,688 4,878 6g 5,478 5,338 4,
40、991 4,901 4,558 4,439 5,5 0,75 7H 5,500 5,013 5,163 4,688 4,924 0,2 4H 6,000 5,870 5,918 5,783 5,821 4h 6,000 5,964 5,870 5,834 5,755 5,712 0,2 6g 5,983 5,927 5,853 5,797 5,738 5,675 0,25 4H 6,000 5,838 5,891 5,729 5,774 4h 6,000 5,958 5,838 5,798 5,693 5,643 0,25 6g 5,982 5,915 5,820 5,757 5,675 5,
41、602 0,35 4H 6,000 5,773 5,833 5,621 5,684 4h 6,000 5,947 5,773 5,728 5,571 5,513 0,35 6g 5,981 5,896 5,754 5,683 5,552 5,468 0,5 5H 6,000 5,675 5,765 5,459 5,571 4h 6,000 5,933 5,675 5,622 5,387 5,315 0,5 6H 6,000 5,675 5,787 5,459 5,599 6g 5,980 5,874 5,655 5,570 5,367 5,263 0,75 5H 6,000 5,513 5,6
42、19 5,188 5,338 4h 6,000 5,910 5,513 5,450 5,080 4,988 0,75 6H 6,000 5,513 5,645 5,188 5,378 6g 5,978 5,838 5,491 5,391 5,058 4,929 6 0,75 7H 6,000 5,513 5,683 5,188 5,424 0,2 4H 6,500 6,370 6,418 6,283 6,321 4h 6,500 6,464 6,370 6,334 6,255 6,212 0,2 6g 6,483 6,427 6,353 6,297 6,238 6,175 0,25 4H 6,
43、500 6,338 6,391 6,229 6,274 4h 6,500 6,458 6,338 6,298 6,193 6,143 0,25 6g 6,482 6,415 6,320 6,257 6,175 6,102 0,35 4H 6,500 6,273 6,333 6,121 6,184 4h 6,500 6,447 6,273 6,228 6,071 6,013 6,5 0,35 6g 6,481 6,396 6,254 6,183 6,052 5,968 DIN 13-21:2005-08 9 Table 1 (continued) Dimensions in millimetre
44、sInternal thread External thread Nomi-nal thread diam-eter Pitch Major diam-eter Pitch diameter Minor diameter Major diameter Pitch diameter Minor diametera d = D P D D2D1d d2d3Toler-ance class min. min. max. min. max. Toler-ance class max. min. max. min. max. min. 0,5 5H 6,500 6,175 6,265 5,959 6,0
45、71 4h 6,500 6,433 6,175 6,122 5,887 5,815 0,5 6H 6,500 6,175 6,287 5,959 6,099 6g 6,480 6,374 6,155 6,070 5,867 5,763 0,75 5H 6,500 6,013 6,119 5,688 5,838 4h 6,500 6,410 6,013 5,950 5,580 5,488 0,75 6H 6,500 6,013 6,145 5,688 5,878 6g 6,478 6,338 5,991 5,891 5,558 5,429 6,5 0,75 7H 6,500 6,013 6,18
46、3 5,688 5,924 0,2 4H 7,000 6,870 6,918 6,783 6,821 4h 7,000 6,964 6,870 6,834 6,755 6,712 0,2 6g 6,983 6,927 6,853 6,797 6,738 6,675 0,25 4H 7,000 6,838 6,891 6,729 6,774 4h 7,000 6,958 6,838 6,798 6,693 6,643 0,25 6g 6,982 6,915 6,820 6,757 6,675 6,602 0,35 4H 7,000 6,773 6,833 6,621 6,684 4h 7,000
47、 6,947 6,773 6,728 6,571 6,513 0,35 6g 6,981 6,896 6,754 6,683 6,552 6,468 0,5 5H 7,000 6,675 6,765 6,459 6,571 4h 7,000 6,933 6,675 6,622 6,387 6,315 0,5 6H 7,000 6,675 6,787 6,459 6,599 6g 6,980 6,874 6,655 6,570 6,367 6,263 0,75 5H 7,000 6,513 6,619 6,188 6,338 4h 7,000 6,910 6,513 6,450 6,080 5,
48、988 0,75 6H 7,000 6,513 6,645 6,188 6,378 6g 6,978 6,838 6,491 6,391 6,058 5,929 7 0,75 7H 7,000 6,513 6,683 6,188 6,424 0,2 4H 7,500 7,370 7,418 7,283 7,321 4h 7,500 7,464 7,370 7,334 7,255 7,212 0,2 6g 7,483 7,427 7,353 7,297 7,238 7,175 0,25 4H 7,500 7,338 7,391 7,229 7,274 4h 7,500 7,458 7,338 7
49、,298 7,193 7,143 0,25 6g 7,482 7,415 7,320 7,257 7,175 7,102 0,35 4H 7,500 7,273 7,333 7,121 7,184 4h 7,500 7,447 7,273 7,228 7,071 7,013 0,35 6g 7,481 7,396 7,254 7,183 7,052 6,968 0,5 5H 7,500 7,175 7,265 6,959 7,071 4h 7,500 7,433 7,175 7,122 6,887 6,815 0,5 6H 7,500 7,175 7,287 6,959 7,099 6g 7,480 7,374 7,155 7,070 6,867 6,763 0,75 5H 7,500 7,013 7,119 6,688
