Designed specifically for Millboard Composite Decking, these unique, hidden decking fixings make installing Millboard simple. There's no pre-drilling, countersinking or clip fixings needed - all you need to do is screw them in. Once they're in, the Millboard Lastane coating simply flexes back over the screw, leaving a virtually indistinguishable mark and creating a cleaner finish. Made from stainless steel, the screws have a self-cutting tip, six-point Torx head, and are waxed for ease of use. And the drill bits are even included in the box. Using the recommended approx 22 screws per board, order one box for every 11 boards used.