I claim the ornamental design for an interchangeable titanium nail head, as shown and described.
FIG. 1 is a perspective view of an interchangeable titanium nail head, showing my new design;
FIG. 2 is a front elevational view thereof, the rear elevational view, left-side elevational view and right-side elevational view all being identical thereto except at a lower threaded portion thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof; and,
FIG. 5 is a cross-sectional view thereof, taken along lines 5-5 of FIG. 3.
The broken lines in FIGS. 1, 3, and 5 depict environmental subject matter and forms no part of the claimed design.