Roof fastener with 3x vertically adjustable base plate (40,47,54 mm) and long bracket. For narrow rafter from 36 mm. With pre-assembled K2 Climber 36/50 and allen bolt. Used for fixation on the K2 mounting rail type K2 SingleRail and CrossRail. Material: Aluminium EN AW-6063 T66; Stainless steel A2