Extended end-plate bolted connections are widely used in the steel structures as moment resisting connections. Most of these connections are flexible or in other words semi-rigid. The present research aims to study the behavior of such connections under the effect of both monotonic and cyclic loadings using the Finite Element Method (FEM). For flexible connections, it is very important to obtain the moment-rotation relationship as well as the connection stiffness. This stiffness can be used to model the flexible connections in the conventional nonlinear stiffness analysis of steel frames. Parametric study was made on extended end-plate bolted beam-column connections subjected to both monotonic and cyclic loading to study the effect of number of parameters; shear force, diameter of bolt, thickness of head plate, and the effect of using head plate stiffener. Present parametric study shows that the value of shear force acting on the connection has a significant effect on the connection stiffness.