DESIGN-VU Decorative Panel Timber Screws 10-Pack are specifically made for installing 3x6 Design-Vu Privacy Panels. The screws are engineered with a wide head to hide the needed expansion and contraction drill hole when applying to timber surfaces. This is an added feature when installing two different materials such as poly on to wood. Each material will expand and contract with weather temperature changes at different rates. Using our screws will provide a long term permanent solution to the common installation. The screws are also an attractive installation option.