Table of Contents

Abstract

Specifies the dimensions for bolts and screws with British Standard Whitworth threads in diameters from ¼ in to 6 in, and the material requirements for steel bolts, screws and nuts for general use.
RECONFIRMATION NOTICE
Technical Committee ME-029 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 14 April 2015.
Approved for reconfirmation in New Zealand on behalf of the Standards Council of New Zealand on 13 August 2015.
The following are represented on Technical Committee ME-029:
Association of Accredited Certification Bodies
Association of Wall and Ceiling Industries of Australia & NZ
Australasian Corrosion Association
Australian Chamber of Commerce and Industry
Australian Engineered Fasteners and Anchors Council
Australian Industry Group
Australian Steel Institute
Australian Technical Infrastructure Committee
AUSTROADS
Bureau of Steel Manufacturers of Australia
CSIRO
Employers And Manufacturers Association
Galvanizers Association of Australia
Materials Australia
National Association of Steel-Framed Housing
National Association of Testing Authorities Australia
New Zealand Heavy Engineering Research Association
Society of Automotive Engineers- Australasia
Steel Construction New Zealand
Swinburne University of Technology

Scope

This Standard specifies the requirements for hexagon bolts and screws with British Standard Whitworth (BSW) thread in diameters from 1/4in to 2 in inclusive and nuts with BSW thread in diameters from 1/4in to 6 in inclusive.

The Standard is intended primarily to cover steel bolts, screws and nuts used within the temperature range of -50¦C to +300¦C, and does not make provision for products requiring special properties such as weldability or corrosion-resistance.

The dimensional requirements of this Standard may also be applied to hexagon nonferrous and stainless steel bolts, screws and nuts.

NOTES:
1 The range of sizes included in this Standard is considered adequate for most of the applications for which this series is likely to be employed.
2 To provide for the time when imperial measuring equipment is no longer available, dimensional and mechanical property requirements in metric units are given in Appendix A.
3 If the purchaser requires other pitch series, i.e. BSF or other thread classes, these should be the subject of agreement between the purchaser and the manufacturer.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 20/05/2016. This standard has been reconfirmed in Australia in 2016 and remains current in New Zealand. Reconfirmation Notice 20/05/2016
Pages
ISBN
Committee	ME-029
Supersedes	DR 97183 CP AS 2451-1981