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UDC 621.993.2
IS0
INTERN AT1 ON AL ORGAN IZATl O N FOR STAN DA RD I ZATlO N
ADDENDUM 1
TO
IS0
R E CO M M E N D AT I O N
R 529
SHORT MACHINE TAPS AND HAND TAPS
1st EDITION
June 1972
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
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ISO/R 529-1966/Add. 1-1972 (E)
UDC 621.993.2
IS0
FOR STAND AR D 12 AT I O N
ORGAN I Z AT I O N
I NT ERN AT1 ON AL
ADDENDUM 1
TO
IS0
R E CO M M E N D AT I O N
R 529
SHORT MACHINE TAPS AND HAND TAPS
1st EDITION
June 1972
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
---------------------- Page: 2 ----------------------
-2-
FOREWORD
Addendum 1 (which is a combination of two documents originally circulated as Draft Addendum 1 [Draft No. 22821
and Draft Addendum 2) to IS0 Recommendation R 529-1966 was drawn up by Technical Committee ISO/TC 29, Small
tools.
Draft No. 2282 and ISO/R 529/Add. 2 were approved in August 1971 by the Member Bodies of the
following countries :
.,
Austria Israel Spain*
Belgium Italy Sweden
Czechoslovakia Japan Switzerland
Egypt, Arab Rep. of Korea, Rep. of* Thailand*
France Netherlands Turkey
Hungary Poland United Kingdom
India Romania U.S.A.
Ireland South Africa, Rep. of U.S.S.R.
*
did not vote on ISO/R 529/Add. 2.
The Member Body of the following country expressed disapproval of Draft No. 2282 on technical grounds :
Australia
No Member Body expressed disapproval of ISO/R 529/Add. 2.
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-3- ISO/R 529-1966/Add. 1-1972 (E)
Addendum 1 to IS0 Recommendation R 529-1966 June 1972
SHORT MACHINE TAPS AND HAND TAPS
L
1. SCOPE
This document is a supplement to IS0 Recommendation R 529, Short machine tups und hand tups, which as
far as relieved shanks taps are concerned, applies only to nominal diameters from 11 mm (7/16 in).
It applies to taps with nominal diameters from 3 mm up to 10 mm and 1/8 to 3/8 in and applies to the same
types of threads as those covered by IS0 Recommendation R 529, i.e.
IS0 metric threads
- coarse pitches (See Table 1)
- fine pitches (See Table 2)
IS0 inch threads
- Unified Coarse (UNC) (See Table 3)
- Unified Fine (LJNF) (See Table 4)
In addition, taps for non-recommended threads are given in an Appendix and apply to the following thread
types :
~ British Standard Whitworth (BSW) (See Table 5)
- Bri
...