General description A premium decking screw utilizing C2 twin-cut technology, designed for rapid penetration into timber, clean countersinking, and secure clamping of decking boards to joists. Technical specifications Size: 4.5 x 65mm Head Type: Countersunk Recess Type: TX Drive Bit Type: T20 Colour/Plating: Organic Green Pack Quantity: 250 Other information Coated with a patented multi-layer corrosion resistant plating to withstand up to 1,000 hours in a salt spray cabinet. Features a strengthened head to prevent shearing when installed with an impact tool. Includes ribs under the head for improved countersinking. Helix shank design for debris removal and improved clamping. Patented twin cut technology for rapid "pick-up" and reduced timber splitting.