A metallic male snap part is capable of enhancing coupling strength with a female snap part by giving appropriate and sufficient elastic deformability to the projection of the male snap part which can be coupled to a depression of the female snap part. The projection includes a plurality of relatively highly deformable portions and a plurality of relatively low deformable portions, the highly and low deformable portions being arranged alternately in the circumference direction of the projection. The highly deformable portions are more deformable elastically in the radial direction of the projection than the low deformable portions.