ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,228,167, issued on Feb. 18.
"Leveling fastener" was invented by Juan Cristobal Oropeza (Tampa, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fastener having a cylindrical shank with a fastener head attached to the first shank end, the head having a tool slot for engaging a tool, the tool slot directed away from the first shank end and a lower head surface adjacent the shaft. The cylindrical shank has a head collar adjacent the head, a threaded collar having securing threads, the threaded collar disposed along a portion of the second shank end, a shank smooth portion disposed between head collar and the threaded collar and a grip washer disposed ...