Sophisticated design techniques such as partially restrained connections need detail information on the load-deformation response of bolted connections. The behavior of single bolt, single shear connections are studied. Seventy tests with different configurations were conducted to evaluate their failure mechanisms and load-deformation characteristics. Comparisons to previous study were made. A new analytical model for the determination of load-deformation response of bolted connections was presented as well as a new Unified Design Curves approach for design purposes. It has been proven that this generalized method can be used efficiently. / Master of Science