Male snap part

A male snap part made of metal having a cylindrical projection to detachably engage with a projection receiving, cylindrical depression of a female snap part,

• wherein the projection is composed of an outer cylindrical portion, an inner cylindrical portion and a top portion which connects upper ends of the outer and inner cylindrical portions,
• wherein the projection includes a plurality of relatively highly deformable portions at predetermined angle intervals in a circumference direction of the projection, and a plurality of remaining portions, each remaining portion being arranged between adjacent two of the highly deformable portions in the circumference direction, the highly deformable portions being more deformable elastically in the outwardly radial direction of the projection than the remaining portions,
• wherein each of the highly deformable portions has a relatively large, outer bulge bulging more outward in the radial direction at an upper part of each of the highly deformable portions than an upper part of each of the remaining portions,
• wherein the projection includes longitudinal slits which are formed from the top portion to the outer and inner cylindrical portions and which partition the projection into the highly deformable portions and the remaining portions, and
• wherein the projection further includes lateral slits formed in the outer cylindrical portion, each of the lateral slits connecting lower ends of two longitudinal slits which define each highly deformable portion therebetween.