The Vesta VTC-3 Seismic wedge anchor in the range of M8, M10, M12, M16, M20 and M24 is an anchor made of galvanised steel. The Vesta VTC-3 HDG wedge anchor in the range of M8, M10, M12, M16 and M20 is an anchor made of sherardized steel. The Vesta VTC-3X Seismic wedge anchor in the range of M8, M10, M12, M16 and M20 is an anchor made of galvanized steel.

The anchor is installed into a predrilled cylindrical hole and anchored by torque-controlled expansion. The anchorage is characterised by friction between expansion clip and concrete.