INTERNATIONAL STANDARD ISO 273-1979(E) Iso AMENDMENT SLIP Published 1979-06-15 INTERNATIONAL ORGANizATION FOR STANDARDIZATION MEK IyHAPODHAg OPrAHV3ALHG HIO CTAHIiAPTW3ALiWH ·ORGANISATION INTERNATIONALE DE NORMALiSATION Fasteners - Clearance holes for bolts and screws MODIFICATION TO FOREWORD (Inside front cover) The last paragraph is to be modified as follows : This International Standard cancels and replaces 1s0 Recommendations R 273/1-1962 and R 273/2-1968. yhnatioalganzatiooSandardizaton ted without license from IHS Not for Resale 273 (ISo International Standard INTERNATIONAL ORGANIzATiON FOR STANDARDIZATION+MEKAYHAPOAHAH OPrAHW3AMA O CTAHAAPTW3AUMeORGANiSATION INTERNATIONALE DE NORMALisATION Fasteners - Clearance holes for bolts and screws Elements de fixation - Trous de passage pour boulons et vis First edition - 1979-06-01 UDC 621.882.15 Ref. No. ISO 273-1979 (E) Descriptors : fasteners, screws, dimensions, bolts, hole size, dimensional tolerances. Copyright International Organization for Standardization Nor Not for Resale Price based on 2 pages FOREWORD IsO (the International Organization for Standardization) is a worldwide federation of national standards institutes (iso member bodies). The work of developing International Standards is carried out through IsO technical committees. Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO 273 was developed by Technical Committee ISO/TC 2, Fasteners, and was circulated to the member bodies in December 1977. It has been approved by the member bodies of the following countries : Australia Hungary New Zealand Belgium Norway India Bulgaria Ireland Romania Italy Canada Spain Czechoslovakia Japan Sweden Denmark Korea, Dem. P. Rep. of Switzerland Finland Turkey Korea, Rep. of France Mexico USA Netherlands Germany, F. R. Yugoslavia The member bodies of the following countries expressed disapproval of the document on technical grounds : South Africa, Rep. of United Kingdom USSR This International Standard cancels and replaces ISO Recommendation R 273-1962 of which it constitutes a technical revision. @ International Organization for Standardization, 1979 : Printed in Switzerland Copyright International Organization for Standardization ed without license from IHS Not for Resa