PURPOSE: To prevent separation of painting of a head part even if these are driven in a hard board such as a ceramic type siding board by a hammer in an improvement in a structure of the head part of a painting nail and a painting rivet screw used in a building.

CONSTITUTION: In a head part of a painting nail and a painting rivet screw used in a building, a large number of recesses 5 are arranged on a top surface, and a top surface 4 between the recess and the recess is kept wide and flat, and the boundary edge between the recess and the top surface is set at an obtuse angle, and painting is applied to a head part 2, and in a structure of the head part of the painting nail and the painting rivet screw, a shape of the recesses is formed as a continuous or discontinuous narrow groove, and in the structure of the head part of the painting nail and the painting rivet screw, the shape of the recesses is a polygonal recess, and such a structure of the head part of the painting nail and the painting rivet screw is provided.