The ornamental design for an attachment for steering, as shown and described.
FIG. 1 is a perspective view of an embodiment of an attachment for steering showing a new design;
FIG. 2 is a left side view of the attachment for steering illustrated in FIG. 1;
FIG. 3 is a front view of the attachment for steering illustrated in FIG. 1;
FIG. 4 is a right side view of the attachment for steering illustrated in FIG. 1;
FIG. 5 is a rear view of the attachment for steering illustrated in FIG. 1;
FIG. 6 is a top view of the attachment for steering illustrated in FIG. 1;
FIG. 7 is a bottom view of the attachment for steering illustrated in FIG. 1; and,
FIG. 8 is an environmental view of the attachment for steering illustrated in FIG. 1.
Evenly-spaced broken lines included in FIGS. 1-7 show portions of the attachment for steering a zero-turn radius vehicle that form no part of the claimed design. Dot-dash pattern broken lines in FIG. 8 represent environmental subject matter that forms no part of the claimed design.