Wall stone plate fixing attachment

Claim 1

A wall stone plate fixing attachment comprising; a position base being fixed firmly on a wall, having a cylindrical shape, a male-threaded outer surface for a female-threaded lengthwise hole of a position head to engage with; a position head of a hexagonal shape, having a female-threaded hole to engage with the position base, an outer end surface bored with a plurality of position holes for securing nails to fit therein; a securing nail having a vertical wall of nearly a quarter of a circle with a vertical straight side and a horizontal straight side, a post having a distal cone-shaped portion and an intermediate smaller-diameter portion extending horizontally and rearward from a corner of the vertical and the horizontal side of the vertical wall, a proximal larger-diameter portion, a central slot cut in said distal portion and said intermediate smaller-diameter portion; and said vertical wall of the securing nail fitting in a groove of a wall stone plate, said cone-shaped distal portion of the securing nail being compressed diametrically and pushed through one of said position holes of the outer end surface of the position head and then stopped by a side wall of said position hole to keep the securing nail secured with the position head, each wall stone plate having an inserting groove in each corner, said inserting groove having the same shape as said vertical wall of the securing nail and a depth the same as the thickness of said vertical wall of the securing nail.