The TIMCO Heavy Duty Timber Screws Hex Flange Head Exterior Silver – 8.0 x 120 includes 10 high-performance screws designed as an alternative to traditional coach screws. These heavy duty screws dramatically decrease installation time as they don’t require a pilot hole into most wood types, making them ideal for external applications or where extra strength is required. The screws feature a hex head countersunk with a fixed washer, 50° deep single thread for secure fixing with high pull-out resistance, and a single slash point to reduce torque and prevent timber splitting. Coated with a patented multi-layer silver corrosion resistant plating that withstands 1,000 hours salt spray test, with helix design that removes debris and improves clamping performance.