Due to their superiority, bolted connections are commonly utilized to join numerous building components. When evaluating the impacts of the connections on the behavior and load-bearing capacity of structural systems, it is crucial to understand the parameters that govern the load-carrying capacity of bolted joints. The bearing capacity of single lap and single bolt friction-effect joints are examined numerically in this paper. Through numerical analysis, the variation in the bearing capacity of the joint as a function of the parameters affecting joint capacity, the pre-tension force, and the surface friction coefficient between the joining plates, was analyzed. Accordingly, it has been observed that the pre-tensioning force and friction coefficient both increase the joint's capacity in a comparable manner. The results demonstrate that the bearing capacity of a slip-critical joint can be enhanced by applying roughening techniques to the friction surfaces of the plate.