ISO metric screw threads. Specification for selected limits of size (Incorporating corrigendum No. 1)

BS 3643-2:2007

British Standards Institution
ISO metric screw threads. Specification for selected limits of size (Incorporating corrigendum No. 1) Download document

Document Status

Current

Supplement

British Standards Extra Supplement

Series

BS

Abstract

Specifies the fundamental deviations, tolerances and limits of size for tolerance classes 4H, 5H, 6H and 7H for internal threads and 4h, 6g and 8g for external threads for coarse pitch 1mm to 68mm diameter, fine pitch 1mm to 33mm diameter and constant pitch 8mm to 300mm diameter.

History

Supersedes BS 3643-2:1981. Came into effect 30 November 2007. First published June 1965. Second edition, December 1966. Third edition, December 1981. Fourth edition, November 2007. Amendment C1 dated June 2014 - See Foreword.

ISBN

9780580865589

Subjects

  • Fixing/jointing products
  • Mechanical fixing products (anchors, bolts, nails, etc.)
  • Materials

Publisher History

With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.

Information

NBS

NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.

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