The assumptions are made in the design of riveted joints are as follows : (a) The friction among the plates is neglected; (b) A shear stress across a cross-section of a rivet is uniform; (c) The straight stress distribution on the plate cross-section between rivet holes is uniform; (d) All rivets within a rivet group subjected to a direct load passing through their CG share the load equally; (e) Rivet shanks and after driving, fill the rivet holes completely.