Axle Lock Nut

FIG. 1 is a front, left perspective view of an axle lock nut according to the new design; FIG. 2 is a front, right perspective view thereof; FIG. 3 is a rear, left perspective view thereof; FIG. 4 is a rear, right perspective view thereof; FIG. 5 is a front elevational view thereof; FIG. 6 is a right side elevational view thereof; FIG. 7 is a left side elevational view thereof; FIG. 8 is a top view thereof; FIG. 9 is a bottom view thereof; FIG. 10 is a rear elevational view thereof; FIG. 11 is a front, left perspective view thereof shown in an alternate environment of use; and, FIG. 12 is a front, right perspective view thereof shown in another alternate environment of use. The broken lines illustrate portions of the axel lock nut that form no part of the claimed design. Any unshaded surfaces shown in broken or between solid and broken lines forms no part of the claimed design.