Product details:
The Fiberon Cortex Hidden Fastening System is the fastest, easiest way to hid deck screw heads on stairs, perimeter boards or when replacing a deck board. Easy to install, Cortex screws work with a special driving tip that automatically places the screw at the precise depth. A color-matched plug minimizes the appearance of hardware. So you get a cleaner, more attractive decking surface. Color: Grey.
