Bolt anchor IMC, stainless steel R. Stainless steel R, uncoated. Particularly suitable for securing medium-heavy loads outdoors in uncracked concrete and natural stone with a dense structure. The 2 cm reduction in the K version allows for savings in drilling effort and material costs. Installation in pre- and through-mounting is possible, as well as energy-saving hammering into the drill hole. When tightening the nut, the bolt pushes into the expansion clip, thus expanding against the wall of the hole and ensuring holding security. The bolt anchor is especially commonly used for securing thin concrete components and applications where loads are of secondary importance. ETA-10/0169, European Technical Approval, Option 7 in uncracked concrete. Type K: Short version.