The fischer high-performance anchor FH II SK with countersunk head is a sleeve anchor made of zinc-plated steel. The anchor is set in the time-saving through-type installation. When tightening the anchor, the cone is pulled into the expansion sleeve and expands it against the hole wall. The black plastic ring prevents the anchor from rotating and absorbs the torque slippage. This means that the fixture is pulled towards the anchoring base. The fischer high-performance anchor FH II SK with countersunk head is ideally suited to fix railings, staircases, and ladders in cracked and non-cracked concrete.