FIG. 1 is a front perspective view of a first embodiment of wing screw according to the present design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a right side elevation view thereof;
FIG. 8 is rear perspective view thereof;
FIG. 9 is a top perspective view thereof;
FIG. 10 is a front perspective view of a second embodiment of wing screw according to the present design;
FIG. 11 is a front elevation view thereof;
FIG. 12 is a rear elevation view thereof;
FIG. 13 is a top plan view thereof;
FIG. 14 is a bottom plan view thereof;
FIG. 15 is a left side elevation view thereof;
FIG. 16 is a right side elevation view thereof;
FIG. 17 is rear perspective view thereof; and,
FIG. 18 is a top perspective view thereof.