Liquid Force Mast Hardware Kit M8Foil Mast Hardware Kit M8 T40 Replacement mast hardware bolt and nut to suit Liquid Force Launch and Flite Foils. When you're carving hard or pushing limits, your foil connection needs to stay locked solid these M8 fasteners are engineered to hold tight under load and won't slip when you're riding behind the boat. Genuine Liquid Force hardware keeps your foil secure so you can focus on your line, not your gear.