This anchorage device is simply riveted on top of your roof surface using 14 watertight blind rivets. The real advantage: You do not have to peel the insulation material underneath the metal surface away before installing it (as you do with a toggle bolt solution). This stainless steel anchorage point is suitable for sandwich and trapezoidal sheeting (negative). The base plate can be used for different seam intervals (280 x 200 mm or 362 x 200 mm). For steel plating ≥ 0.45 mm