DIN e. V.

The market is becoming increasingly global, and international standards ensure smooth trade as much as possible. The field of mechanical fasteners is no exception: standards form the basis for uniform dimensions, consistent mechanical properties, and minimum quality requirements in the area of screws, nuts, and washers. This promotes both the interchangeability of goods and safety: binding regulations lead to greater reliability, fewer failures, and damages. This is particularly important for universally used components like fasteners – in this book: screws, nuts, and washers. The current 11th edition of "Mechanical Fasteners 3" once again includes all relevant documents in their latest version in a proven, practical collection of standards. The following aspects are covered by the DIN Handbook 55: mechanical and functional properties, testing methods, dimensional, shape, and positional tolerances, acceptance testing conditions, and quality assurance. The book is aimed at: manufacturing companies, users, import companies, and testing institutes.