Engagement portion for a container cap

FIG. 1 is a perspective view of the engagement portion for a container cap, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of a container is included for the purpose of illustrating unclaimed environment and forms no part of the claimed design.