This International Standard specifies the rules and graphical symbols for the representations of splines and serrations on technical drawings. Two methods of representation are specified as follows: a) Complete representation; b) Simplified representation. The rules and graphical symbols specified in this International Standard are applicable to detail drawings of the parts (shafts and hubs) and to assembly drawings of joints. Note For uniformity all figures in this International Standard are drawn in the first-angle orthographic projection. It should be understood that the third-angle orthographic projection could equally well have used without prejudice to principles established.