The ornamental design for a pileheadconnector, as shown and described.
FIG. 1 is a perspective view of a pile head connector, according to our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view of the pile head connector shown on a pile in dotted lines.
Throughout the Figures, where shown the dotted lines showing additional structure of the pile head connector or the environment are for illustrative purposes only and form no part of the claimed design.