August 2000 2 000
DEUTSCHE NORM
General purpose ISO metric screw threads Part 20: Limit Limits s of size for for 1 mm to 68 mm diameter diameter coarse pitch threads with recommended tolerance classes
ICS 21.040.10
{ 13-20
Supersedes November 1999 edition.
Metrisches ISO-Gewinde allgemeiner Anwendung – Teil 20: Grenzmaße für Regelgewinde mit bevorzugten Toleranzklassen – Gewinde-Ne Gewin de-Nenndurc nndurchmess hmesser er 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 prepared by Technical Committee Gewinde Gewinde of of the Normenausschuss Technische Grundlagen (Fundamentals Grundlagen (Fundamentals in Technology Standards Committee). Ame ndm ndment ents s This standard differs from the October 1983 edition as follows: a) For internal internal threads threads of 5 mm to 68 mm nominal nominal diameter, diameter, tolerance tolerance class class 7G, and for external external threads threads of 5 mm to 7 mm nominal diameter, diameter, tolerance class 8e has been included. b) For external external threads threads of 56 mm and 60 mm nominal nominal diameter, diameter, the values values of the minimum pitch pitch diameter diameter for tolerance class 6e have been corrected (from 52,151 mm to 52,051 mm and from 56,151 mm to 56,051 56, 051 mm) mm).. As com compare pared d with w ith the Nov embe emberr 199 1999 9 editi e diti on, som some e print p rint ing err errors ors hav have e been b een cor correct rected. ed. Previous editions DIN 13-43: 1965-08; 1965-08; DIN DIN 13-44: 1966-03; 1966-03; DIN DIN 13-20: 1972-11, 1972-11, 1983-10, 1983-10, 1999-11. 1999-11.
All dime nsio ns are in mill imet imetres. res.
1
Sco pe
This standard applies to general purpose ISO metric screw threads having the basic profile specified in DIN ISO 68-1. It specifies specifies limits limits of size for for 1 mm to 68 mm diameter diameter coarse coarse pitch pitch threads threads with recommend recommended ed tolerance classes.
2
Norm No rmat ativ ive e re refe fere renc nces es
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. 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. F or undated references, the latest edition of the publication referred to applies. DIN DI N 13 13-1 -1 Gene Ge nera rall pur purpo pose se IS ISO O met metri ric c scr screw ew th thre read ads s – Nom Nomin inal al si size zes s for for 1 mm to 68 68 mm mm dia diame mete terr coarse pitch threads DIN DI N 13 13-1 -19 9 Gene Ge nera rall pur purpo pose se IS ISO O met metri ric c scr screw ew th thre read ads s – No Nomi mina nall pro profi file les s DIN ISO 68-1 Genera Gen erall purpo purpose se ISO ISO scre screw w threa threads ds – Basi Basic c profil profile e – Part Part 1: Metr Metric ic scre screw w threa threads ds ( IS IS O 6 88- 1 : 1 99 99 8) 8) DIN ISO 965-1 Gener General al purpose purpose ISO metri metric c screw screw thread threads s – Toleran Tolerances ces – Part 1: Principl Principles es and and basic basic data data (ISO (I SO 96 9655-1 1 : 19 1998 98)) DIN ISO 965-2 Gener General al purpose purpose ISO metric metric screw threa threads ds – Tolera Tolerances nces – Part Part 2: Limits Limits of size for general general purpose purpos e external external and internal internal screw threads threads – Medium quality quality (ISO 965-2 : 1998) DIN ISO 965-3 Gener General al purpos purpose e ISO ISO metric metric screw threa threads ds – Tolera Tolerances nces – Part Part 3: Deviat Deviations ions for constru construcctionall screw threa tiona threads ds (ISO 965-3 : 1998) ACHTUNG ! NUR FÜR INTERNE VERWENDUNG ! Downloads und Ausdruck e unterliegen NICHT dem Änderungsdienst ! ATTENTION ! ONLY FOR INTERNAL USE ! Downloads and prints are NOT subject to modification service !
Continued Conti nued on pages pages 2 to 8. Translation by DIN-Sprachendienst. In case of doubt, the German-language original should be consulted as the authoritative text.
© No part of this translation translation may be reproduced without without the prior permission permission of DIN Deutsches Institut Institut für Normung e. V. , Berlin. Beuth Verlag GmbH, GmbH , 10772 Berlin, Germany, Germany, has the exclusive right of sale for German Standards (DIN-Normen) .
R ef ef . N o. o. D IN IN 1 33- 20 20 : 2 00 00 00- 08 08 Engl En glis ish h pri price ce gr grou oup p 08
Sale Sa les s No. No. 01 0108 08 11.00
P ag e 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 ISO 965-1. Limits of size for other tolerance classes may be calculated from the deviations specified in DIN ISO 965-3. See DIN ISO 965-2 for limits of size for screws, bolts and nuts.
e z i s D l e a n i m o N
r r o h o n c n 1 i 1 t i i 2 m D D p D m , , , m r m r m r e e e u t u t u t m e m e m e i i x m i n m n m i a i a a i i a i d M d M d M
h c t i 2 p D , m r e u t m e i x m a i a M d
D , r e t e m a i d r o j a m m u m i n i M
Figure 1: Internal thread with tolerance position H
2
h c t i 2 p d , m r e u t m e i x m a i a M d
e z i s d l e a n i m o N
d , r e t e m a i d r h o ) n 1 c i t i m 3 d p , m m u r e t u m e m i i x m n i a i a d M M
r o ) n 1 i 3 d m , m r e u t m e i n m i a i M d
d , r e t e m a i d r o j a m m u m i n i M
d , r e t e m a i d r o j a m m u m i x a M
Figure 3: External thread with tolerance position h
1 )
e z i s D l e a n i m o N
r r o h o n c n 1 i 1 t i i 2 m D D p D m , , , m r m r m r e e e u t u t u t m e m e m e i i x m i n m n m i a i a a i i a i d M d M d M
h c t i 2 p D , m r e u t m e i x m a i a M d
D , r e t e m a i d r o j a m m u m i n i M
Figure 2: Internal thread with tolerance position G
2
e z i s d l e a n i m o N
h c t i 2 p d , m r e u t m e i x m a i a M d
d , r e t e m a i d r h o ) n 1 c i t i m 3 d p , m m u r e t u m e m i i x m n i a i a d M M
r o ) n 1 i 3 d m , m r e u t m e i n m i a i M d
d , r e t e m a i d r o j a m m u m i n i M
d , r e t e m a i d r o j a m m u m i x a M
Figure 4: External thread with tolerance position e, f and g
Maximum calculated taking R as 0,144 338 P = H /6 (cf. DIN 13-19), and the minimum, takin g R as 0,125 P H /7 (cf. DIN ISO 965-1). R
P ag e 3 DIN 13-20 : 2000-08 Table 1: Limits of size Internal threads Nominal diam- Pitch, Tolereter, P ance d class (= D )
Minimum major diameter, D
External threads
Pitch diameter,
Minor diameter,
D2
D1
Min.
Max.
Min.
Tolerance class
Max.
(continued)
Major diameter,
Pitch diameter,
Minor diameter,
d
d2
d3
Max.
Min.
Max.
Min.
Max.
Min.
P ag e 4 DIN 13-20 : 2000-08 Table 1 (continued) Internal threads Nominal diam- Pitch, Tolereter, P ance d class (= D )
Minimum major diameter, D
External threads
Pitch diameter,
Minor diameter,
D2
D1
Min.
Max.
Min.
Tolerance class
Max.
(continued)
Major diameter,
Pitch diameter,
Minor diameter,
d
d2
d3
Max.
Min.
Max.
Min.
Max.
Min.
P ag e 5 DIN 13-20 : 2000-08 Table 1 (continued) Internal threads Nominal diam- Pitch, Tolereter, P ance d class (= D )
Minimum major diameter, D
External threads
Pitch diameter,
Minor diameter,
D2
D1
Min.
Max.
Min.
Tolerance class
Max.
(continued)
Major diameter,
Pitch diameter,
Minor diameter,
d
d2
d3
Max.
Min.
Max.
Min.
Max.
Min.
P ag e 6 DIN 13-20 : 2000-08 Table 1 (continued) Internal threads Nominal diam- Pitch, Tolereter, P ance d class (= D )
Minimum major diameter, D
External threads
Pitch diameter,
Minor diameter,
D2
D1
Min.
Max.
Min.
Tolerance class
Max.
(continued)
Major diameter,
Pitch diameter,
Minor diameter,
d
d2
d3
Max.
Min.
Max.
Min.
Max.
Min.
P ag e 7 DIN 13-20 : 2000-08 Table 1 (continued) Internal threads Nominal diam- Pitch, Tolereter, P ance d class (= D )
Minimum major diameter, D
External threads
Pitch diameter,
Minor diameter,
D2
D1
Min.
Max.
Min.
Tolerance class
Max.
(continued)
Major diameter,
Pitch diameter,
Minor diameter,
d
d2
d3
Max.
Min.
Max.
Min.
Max.
Min.
P ag e 8 DIN 13-20 : 2000-08 Table 1 (concluded) Internal threads Nominal diam- Pitch, Tolereter, P ance d class (= D )
Minimum major diameter, D
External threads
Pitch diameter,
Minor diameter,
D2
D1
Min.
Max.
Min.
Max.
Tolerance class
Major diameter,
Pitch diameter,
Minor diameter,
d
d2
d3
Max.
Min.
Max.
Min.
Max.
Min.
