Specifies the dimensions for bolts and screws with British Standard Whitworth threads in diameters from ¿¿ in to 6 in, and the material requirements for steel bolts, screws and nuts for general use.RECONFIRMATION NOTICETechnical 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 BodiesAssociation of Wall and Ceiling Industries of Australia