The ULF wedge anchor in the range of M8, M10, M12, M16, M20 and M24 is an anchor made of galvanised steel. The ULS wedge anchor in the range of M8, M10, M12, M16 and M20 is an anchor made of sherardized steel. The ULT wedge anchor in the range of M8, M10, M12, M16 and M20 is an anchor made of galvanized steel. The NULS wedge anchor in the range of M8, M10, M12, M16 and M20 is an anchor made of stainless steel. The anchor is installed into a predrilled cylindrical hole and anchored by torque-controlled expansion. The anchorage is characterized by friction between expansion clip and concrete.