The CELO BAZ2 wedge anchor in the range of M8, M10, M12, M16 and M20 is an anchor made of galvanized steel. The CELO BAZ2 SC wedge anchor in the range of M8, M10, M12, M16, M20 and M24 is an anchor made of galvanised steel. The CELO BAZ2 ZN wedge anchor in the range of M8, M10, M12, M16 and M20 is an anchor made of zinc nickel steel. The CELO BAZ2 SH wedge anchor in the range of M8, M10, M12, M16 and M20 is an anchor made of sherardized steel. The CELO BAZ2 A4 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.