Specialist Flooring Screws for Secret Fixing Tongue & Groove Boards TIMCO C2 Tongue-Fix Screws are purpose-designed for secret fixing tongue & groove floorboards without damaging the board edges. The reduced countersunk head sits flush within the joint for a seamless finish, while the advanced twin-cut tip provides rapid starting, reduces drive torque, and minimises timber splitting. Featuring the C2 twin-cut thread for maximum holding power, these screws are yellow passivated for corrosion resistance and equipped with a TX (Torx) drive for superior bit engagement and minimal cam-out. Key Features & Benefits Reduced Countersunk Head: Allows discreet fixing within tongue & groove joints. Twin-Cut Tip: Quick starting and reduced splitting without pre-drilling in most cases. C2 Twin-Cut Thread: Provides exceptional holding strength and pull-out resistance. TX (Torx) Drive: Improves torque transfer and minimises cam-out for cleaner driving. Yellow Passivated Finish: Adds corrosion resistance for long-lasting performance. Application Areas Secret fixing tongue & groove floorboards Wooden flooring installation Joinery where discreet fixing is required DIY and professional flooring projects Technical Specifications Head Type: Reduced countersunk Drive Type: TX (Torx) Thread Type: C2 twin-cut Point: Twin-cut tip Material: Hardened carbon steel Finish: Yellow passivated Use: Interior applications