ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,576, issued on Sept. 15.
"Screw and a method of manufacturing thereof" was invented by Kumar Ramachandra (Bengaluru, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides an improved screw and method of manufacturing thereof. The method comprising the steps of manufacturing 101 the screw body by cold forging process using ferrous alloy, making 102 a hole 301 on the screw head 201 to form a base of the hole and a wall thickness 501 of the screw head 201 for providing an internal drive, forming 103 a layer 602 of hard ferrous alloy in the hole 301 with the screw head 201 wherein the layer 602 having high hardness than t...