Fastening Device

FIG. 1 is a top, front, right-side perspective view of a fastening device;

FIG. 2 is a bottom, rear, left-side perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a left-side view thereof; and,

FIG. 7 is a right-side view thereof.

The broken lines shown in the figures represent portions of a fastening device that form no part of the claimed design.