FIG. 1 is a bottom plan view of a fastening device for a case for electronic equipment showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a rear, left side, and bottom perspective view thereof; and,
FIG. 7 is a front, top, right side perspective view thereof.
The tonal shading in the drawings is included for the purpose of illustrating the surface contours of the claimed design and forms no part thereof.