All Sonar Modular Foil System parts are assembled using Torx T40 screws. We recommend applying a small amount apply a small amount of the marine grade grease provided in the Sonar Foil Tool Set onto the threads and undersides of the heads on the screws before assembling your foil (Ensure all surfaces are free from dirt or sand prior). This Torx T40 Screwdriver and Marine Grease Tool Set is included with complete Foil Editions. We do not recommend use of power tools for Foil assembly, as these may cause damage (as control of torque and power is limited) and render your warranty void.
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