TheMast Top Plateenables to connect the F-ONE aluminium masts to all boards featuring a twin track system (the lateral spacing between the tracks must be 90mm). It is made of aluminium 6061, CNC machined with high precision and fully anodized.To connect the Mast Top Plate to the mast, slide the mast into the sleeve of the Top Plate and fasten using two M6x25mm tapered head screws. To connect the plate to the board, slide the F-ONE T-nuts into the tracks and fasten the plate using M6 tapered head screws. (25mm for bamboo and carbon bamboo boards 16mm for Topsheet construction boards).