IS 1367 : Part 2 : 2002/ISO 4759-1 : 2000 Technical Supply Conditions for Threaded Steel Fasteners - Part 2 : Tolerances for Fasteners - Bolts, Screws, Studs and Nuts - Product Grades A, B and C

NATIONAL FOREWORD

This Indian Standard (Part 2) (Third Revision) which is identical with ISO 4759-1:2000 ‘Tolerances for fasteners - Part 1:Bolts, screws, studs and nuts - Product grades A, B and C’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recomrhendation of the Bolts, Nuts and Fasteners Accessories Sectional Committee and approval of the Basic and Production Engineering Division Council.

This standard was originally published in 1961 and subsequently revised in 1967 and 1979. The last revision was based on ISO 4759/1-1978. This revision of the standard has been taken up to align it with ISO 4759-1:2000 by adoption under dual numbering system.

The text of ISO Standard has been approved as suitable for publication as Indian Standard without deviations. Certain terminology and conventions are, however, not identical to those used in Indian Standards. Attention is drawn especially to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.