To increase the accuracy of the driving point of each screw for directly securing a lateral member to a post for a fence construction made of resin or metal.

The fence, having a cross plate member fitted over a connecting member having openings at each end, and having ribs disposed inside the cross plate member to correspond to guides provided on the connecting member, is a technical premise. A protruding part is provided on the surface of the cross plate member and in the driving position of a screw used to secure the cross plate member to the post. Protruding and recessed parts which correspond to the protruding part or the protruding part are provided on the back of a washer and the washer is positioned by mating the protruding and recessed parts of the cross plate member with the irregularities of he back of the washer.