Patent ID: 6334748
Filing Date: 2002-01-01
Classification: F16B

Abstract:
A screw with cutting head and self-tapping cutter, comprising:a. a cylindrically shaped cutting head; b. a closed hole in a top side of said cutting head; c. a pair of equivalent and oppositely positioned curved grooves cut into said cutting head; d. an elongated shank affixed to a top side thereof to a bottom side of said cutting head; e. a self-tapping cutter located within a lower portion of said shank; f. said self-tapping cutter being concave in shape and tapered to a point at an uppermost portion thereof and tapering to a sharp point at a lowermost portion thereof; g. sad elongated shank tapering to a point at a lowermost portion thereof coincident with said sharp point at said lowermost portion of said self-tapping cutter; h. threading of said screw extending down said elongated shank beginning from a locus thereupon at a point adjacent a bottom side of said cutting head; i. an angular pitch of all bits of said threading being equivalent and in excess of horizontal, and; j. an angularity of each of said pair of equivalent and oppositely positioned curved grooves being equivalent and equivalent to said angular pitch of all said bits of said threading.