The TIMCO Wafer Head Exterior Green Timber Screws are designed as an alternative to traditional coach screws for timber to timber applications. These screws feature a wafer head for improved clamping and low profile finish, with a patented multi-layer corrosion resistant coating that withstands 1,000 hours salt spray testing making them ideal for external applications. The helix shank removes debris and improves clamping, while the 50° deep single thread provides secure fixing with high pull-out resistance. The single slash point reduces torque and timber splitting risk, and the 25° sharp point ensures fast start and improved thread acceptance.