I am trying to do a simulation of assembly having 3 parts. 2 Steel parts and one concrete part. 2 steel parts are connected by screws and steel anchored in concrete. When i am select screw connection and select the edge of top plate and bore face of bottom plate, the screw extended out of the bottom plate and goes into concrete. So i cannot able to get accurate result for simulation. How can i define the length of screw in bolt connection.