Reaffirmed 2023

NATIONAL FOREWORD

This Indian Standard (Part 5) (Fourth Revision) which is identical with ISO 898-5 : 2012 ‘Mechanical properties of fasteners made of carbon steel and alloy steel — Part 5: Set screws and similar threaded fasteners with specified hardness classes — Coarse thread and fine pitch thread’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the General Engineering and Fasteners Standards Sectional Committee and approval of the Production and General Engineering Division Council.

This standard was originally published in 1961 and subsequently revised in 1967, 1980 and 2002. The fourth revision of this standard has been undertaken to align it with the latest version of ISO 898-5 : 2012.

This Indian Standard is published in 20 parts. Other parts in this series are:

Part 1 General requirements for bolts screws studs and nuts

Part 2 Tolerances for fasteners - Bolts screws studs and nuts - Product grades A B and C

Part 3 Mechanical properties of fasteners made of carbon steel and alloy steel - Bolts screws and studs

Part 6 Mechanical properties and test methods for nuts with specified proof loads

Part 7 Mechanical properties and test methods for nuts without specified proof loads

Part 8 Prevailing torque type steel nuts - Mechanical and performance properties

Part 9/Sec 1 Surface discontinuities, Section 1 Bolts screws and studs for general applications

Part 9/Sec 2 Surface discontinuities, Section 2 Bolts screws and studs for special applications

Part 10 Surface discontinuities - Nuts

Part 11 Electroplated coatings

Part 12 Phosphate coatings on threaded fasteners

Part 13 Hot-dip galvanized coatings on threaded fasteners

Part 14 Stainless steel threaded fasteners

Part 14/Sec 1 Mechanical properties of corrosion-resistant stainless-steel fasteners, Section 1 Bolts screws and studs

Part 14/Sec 2 Mechanical properties of corrosion-resistant stainless-steel fasteners, Section 2 Nuts

Part 14/Sec 3 Mechanical properties of corrosion-resistant stainless-steel fasteners, Section 3 Set screws and similar fasteners not under tensile stress

Part 16 Designation system for fasteners

Part 17 Inspection sampling and acceptance procedure

Part 18 Packaging

Part 19 Axial load fatigue testing of bolts screws and studs

Part 20 Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm

The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn 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.