Roof hook with triple height adjustment in the base plate (40/47/55 mm). For rafters from 48 mm (narrow rafters from 36 mm possible with M6 wood screw). 6 mm bracket thickness, ideal for concrete roof tiles. With pre-assembled Climber 36/50 and cylinder head screw. For fastening the K2 SingleRail and CrossRail mounting rails. Material: Aluminium EN AW-6063 T66; stainless steel A2.