I claim the ornamental design of a door hardware set, as shown and described.
FIG. 1 is a perspective view of a door hardware set that includes a thumbturn rosette and handle rosette.
FIG. 2 is a front view of the door hardware set of FIG. 1.
FIG. 3 is a first side view of the door hardware set of FIG. 1; and,
FIG. 4 is second side view of the door hardware set of FIG. 1 that is opposite the first side view of FIG. 3.
The broken lines in the Figures are for illustrative purposes only and form no part of the claimed design. The shade lines in the Figures show contour or the flatness of a surface, and not surface ornamentation.