The TIMCO Heavy Duty Timber Screws Hex Flange Head Exterior Silver – 10 x 130 includes 10 professional-grade timber screws designed as an alternative to traditional coach screws. These heavy duty screws dramatically decrease installation time as they don’t require pilot holes into most wood types, making them ideal for external applications or where extra strength is required. Features include a hex head countersunk design with fixed washer, patented silver corrosion resistant plating that withstands 1,000 hours salt spray test, and a 50° deep single thread providing secure fixing with high pull-out resistance. The single slash point reduces torque and risk of timber splitting, while the helix design removes debris and improves clamping performance.