Abstract: A locking device which includes a new combination of components, namely, the hasp and a round cylinder lock protectively embedded in an indentation built into the hasp. The hasp is designed to be used with a round cylinder lock of the type disclosed in U.S. Pat. No. 3,769,821 and sold by the American Lock Company. The hasp of the present invention is comprised of a steel reinforced plate, the steel reinforced plate has a truncated circular indentation on a front side thereof for encapsulating an outer diameter of the round cylinder lock. The truncated circular indentation has a hasp hole, a locking pin extends from the round cylinder lock and is receivable in the hasp hole. The hasp hole is sized slightly larger than the outer circumference of the locking pin, the locking pin is fixed to the round cylinder lock and extends axially outwardly thereof.