This book introduces the latest research on friction and wear at bolted joint interfaces and explores the interface mechanics behaviour and modelling methods of bolted joints. It involves many branches of mechanical engineering, including contact mechanics, dynamics, tribology, experimentation, modeling and numerical simulation. The book helps readers to deepen their understanding of friction and wear at bolted joint interfaces through experimental tests and in-depth theoretical analysis, based on the latest research and developments in the field. The book has potential guiding significance in the design of bolted connection structures, bolt anti-loosening design, and health monitoring of jointed structures. It also offers a generalized interface modelling approach to predict friction and wear-induced nonlinear dissipation and stiffness, which can also be integrated into commercial finite element software.