FIG. 1 is a perspective view of the wingnut for a flow alarm device;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a side view thereof;
FIG. 5 is another side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is another perspective view thereof.
Broken lines are used to illustrate portions of the wingnut for a flow alarm device or environmental subject matter that form no part of the claimed design. The dot-dash-dot and/or the diagonal lines form the bounds of the claimed design and are not part of the claimed design.