This first edition of DIN Handbook 45 is a compilation of 79 standards on threads used in various technical fields. Most of the documents included here are fundamental standards on threads for general applications covering a wide range of thread types: ISO metric general purpose and trapezoidal screw threads, stub metric trapezoidal screw threads, round screw threads, buttress threads and pipe threads. The handbook also includes numerous standards on threads for use in special applications such as optical engineering, automotive engineering, railway engineering, pipeline construction and packaging. Many of the standards included have international relevance. With ISO 5855-1 and LN 9163-1 the collection also contains two of the most important thread standards for the aerospace industry.