Plastic article with interrupted interior threads for securing a threaded heat sink to a heat generating member

A molded article having interior threads, for securing a threaded heat sink having a bottom contact surface and a longitudinal axis perpendicular thereto, to a heat generating member having a top planar surface, comprising:

• a molded article having an aperture therethrough;
• said aperture defined by a cylindrical inner wall having an inner wall surface and a central axis;
• said article being manufactured of plastic;
• a plurality of thread segments disposed on said inner wall surface in a position substantially perpendicular to said central axis;
• said thread segments describing a helical thread pattern of greater than one turn;
• each of said thread segments being positioned at a height different from one another on said inner wall surface of said aperture;
• none of said thread segments vertically overlapping one another, in the direction of said central axis, about the periphery of said inner wall of said aperture;
• means connected to said molded article for securing said molded article to said heat generating member;
• and
• means for threadably receiving the threaded heat sink member through said aperture and into heat transfer communication with said heat generating member;
• said contact surface of said heat sink being flush with said top planar surface of said heat generating member;
• said longitudinal axis being perpendicular to said top planar surface of said heat generating member.