LAMINATE NAIL Russian patent published in 1999 - IPC

FIELD: manufacture of fastening articles, possibly for assembling building structures, mainly wooden ones. SUBSTANCE: laminate nail includes at least two subareas of materials. At least a part of line of cross section boundary and(or) at least a part of line of boundary of material subareas is in the form of fragment of oblique cone section of straight circular cone. EFFECT: nail with constructionally caused directivity of strength properties, enhanced efficiency of fixation due to increased lateral surface of nail stem, high corrosion resistance, easy identification of nail manufacturer. 16 cl, 16 dwg