Deckorators Stowaway hidden fasteners discreetly secure deck boards to joists using the grooved edges of decking. The Stowaway screw comes preloaded, making the installation process faster, saving time and money. Stowaway hidden fasteners provide a fastener-free look and consistent 1/4 inch spacing between deck boards. Deck boards are automatically spaced at proper intervals, and the need for predrilling and countersinking are eliminated.