1、INTERNATIONAL STANDARD ISO 2857 : 1973 TECHNICAL CORRIGENDUM 1 Published 1990-10-15 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION. MEXAYHAPOAHAR OPTAHM3AVWl n0 CTAHAPTVl3AI&WlORGANlSATlON INTERNATIONALE DE NORMALISATION Ground thread taps for ISO metric threads of tolerantes 4H to 8H and 4G to 6G c
2、oarse and fine pitches - Manufacturing tolerantes on the threaded Portion TECHNICAL CORRIGENDUM 1 Tarauds ti filets rectifihs pour filetages mhrigues ISO de tolkrance 4H 3 8H et 4G h 6G 5 pas gros et 5 pas fins - Tolbrances dexhcu tion de Ia Partie taillhe RECTIFICA TIF TECHNIQUE I Technical corrige
3、ndum 1 to International Standard ISO 2857: 1973 was prepared by Technical Committee ISO/TC 29, Small tools. Page 7 Clause 1 Line 5, delete “considered as usually” and insert “considered as not usually”. UDC 621.993 Ref. No. ISO2857 : 1973Kor.l : 1990 (E) Descriptors : tools, taps, screw threads, dimensional tolerantes. 0 ISO 1990 Printed in Switzerland This page intentionally left blank
