Bolt anchors are the cost-effective anchoring solution for high performance requirements in cracked and non-cracked concrete and in areas subject to seismic influences. The easy installation saves time. The drill hole is made, the anchor is hammered in, and the nut is tightened with a controlled torque. The cone bolt expands against the wall of the drill hole. The anchors are made from normal steel, hot-dip galvanised steel, A4 stainless steel, and highly corrosion-resistant steel. They safely introduce the loads into the base material through friction locking.