ISO INTERNATIONAL STANDARD 2902 Second edition 2016-09-01 IsO metric trapezoidal screw threads General plan Filetages métriques trapézoidaux Iso - Vue d'ensemble Reference number IS0 2902:2016(E) IS @ IS0 2016 IS0 2902:2016(E) Contents Page Foreword .iv 1 Scope. 1 2 Normative references. 1 3 Terms and definitions. 1 4 Choice of diameter and pitch. 5 Diameter and pitch combinations. 6 Designation.. Bibliography. @ IS0 2016 - All rights reserved ili IS0 2902:2016(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. ISo collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are different types of Iso documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see wwwiso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of any patent rights identified during the development of the document will be in the Introduction and/or on the ISo list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning ofisO specific terms and expressions related to conformity assessment, as well as information about IsO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: Wwwiso.org/iso/forewordhtml The committee responsible for this document is ISO/TC 1, Screw threads, This second edition cancels and replaces the first edition (IS0 2902:1977), Clause 4 of which has been technically revised (now Clause6), iv @IS0 2016 -All rights reserved