ISO/R 261:1969

Title missing - Legacy paper document

ISO/R 261:1969

Name:ISO/R 261:1969   Standard name:Title missing - Legacy paper document
Standard number:ISO/R 261:1969   language:English language
Release Date:31-Dec-1968   technical committee:ISO/TMBG - Technical Management Board - groups
Drafting committee:ISO/TMBG - Technical Management Board - groups   ICS number:
Ref. No. : ISO/R 261-1969 (E)
üDC 621.882.082.1 (100)
IS0
I N T E RN AT I O N A L O R G A N I Z AT I O N FOR STAND AR D 1 ZAT I O N
IS0 RECOMMENDATION
R 261
IS0 GENERAL PURPOSE METRIC SCREW THREADS
GENERAL PLAN
2nd EDITION
r' September 1969
This second edition supersedes the first edition.
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: 1 ----------------------
-3-
BRIEF HISTORY
The IS0 Recommendation R 261, IS0 metric screw threads - General pbn (diameter range 0.25 to 300 mm), was drawn
up by Technical Committee ISO/TC 1, Screw threads, the Secretariat of which is held by the Svenges Standardiseringskommission (SIS).
Work on this question led to the adoption of a Dràft IS0 Recommendation.
In May 1960, this Draft IS0 Recommendation (No. 297) was circulated to all the IS0 Member Bodies for enquiry. It was
approved by 30 Member Bodies. One Member Body opposed the approval of the Draft.
This Draft IS0 Recommendation was then submitted by correspondence to the IS0 Council, which decided, in July 1962,
to accept it as an IS0 RECOMMENDATION.
L
BRIEF HISTORY RELATING TO THE 2nd EDITION
In 1967, Technical Committee ISO/TC 1 decided to revise the IS0 Recommendation R 261-1962, deleting
the sizes below 1 mm, and a Draft IS0 Recommendation was adopted to this effect.
In May 1968, this Draft IS0 Recommendation (No. 1499) was circulated to all the IS0 Member Bodies for
enquiry. It was approved, subject to a few modifications of an editorial nature, by the following Member Bodies :
Austria Israel South Africa, Rep. of
Belgium Italy Spain
Canada Japan Sweden
Chile Korea, Rep. of Switzerland
Czechoslovakia Net herlands Thailand
Cuba New Zealand Turkey
Denmark Norway U.A.R.
France r' Peru United Kingdom
Germany Poland U. S.S. R.
Hungary Portugal
India Romania
Two Member Bodies opposed the approval of the Draft :
Australia
U.S.A.
This Draft IS0 Recommendation was then submitted by correspondence to the IS0 Council, which decided,
in September 1969, to accept it as a revision of IS0 Recommendation R 261-1962, the title of which is modified
as follows ; IS0 general purpose metric screw threads - General plan.
This edition (2nd edition) cancels and replaces the first edition of IS0 Recommendation R 261-1962.

---------------------- Page: 2 ----------------------
-4- ISO/R 261-1969 (E)
FOREWORD
Thi
...

  • Relates Information
  • ISO 8130-9:1992

    ISO 8130-9:1992 - Coating powders
    09-28
  • EN 352-2:2020/FprA1

    EN 352-2:2021/oprA1:2023
    09-28
  • IEC TS 61158-4:1999

    IEC TS 61158-4:1999 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 4: Data Link protocol specification Released:3/24/1999 Isbn:2831847656
    09-28
  • HD 566 S1:1990

    HD 566 S1:1998
    09-28
  • ISO 5131:1982/Amd 1:1992

    ISO 5131:1982/Amd 1:1992
    09-28
  • EN 60598-2-22:1990

    EN 60598-2-22:1996
    09-27
  • ISO 8504-2:1992

    ISO 8504-2:1992 - Preparation of steel substrates before application of paints and related products -- Surface preparation methods
    09-27
  • EN 12165:2024

    prEN 12165:2022
    09-27
  • IEC TS 61158-6:1999

    IEC TS 61158-6:1999 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 6: Application Layer protocol specification Released:3/24/1999 Isbn:2831847613
    09-27
  • ISO 4252:1992

    ISO 4252:1992 - Agricultural tractors -- Operator's workplace, access and exit -- Dimensions
    09-27