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: 1000 Other information Coated with a patented multi-layer corrosion resistant plating to withstand up to 1,000 hours in a salt spray cabinet. Features strengthened head to prevent shearing when installed with an impact tool. Ribs under the head for improved countersinking. Helix shank for removing debris and improving clamping. Patented twin cut technology for rapid "pick-up" and reduced timber splitting.