The fischer insulation support DHK is the economical plastic insulation support for soft and pressure-resistant insulation. The optimised geometry of the expansion section ensures a low anchorage depth and reduces the amount of drilling required. DHK is hammered in the push-through installation. When hammered, the ribs expand in the drill hole and the optimal pressure is applied to the DHK. Flexible pins in the plate area adapt to the insulating material, and ensure a sustained contact pressure. The fischer insulation support DHK is suitable for anchoring insulation boards in solid and perforated brick, concrete and aerated concrete.