CAMO Marksman Hidden Deck Fastening System/Tool - Decking ...The Camo Marksman is a lightweight tool designed for the do-it-yourselfer. The Marksman positions Camo deck screws to penetrate the deckboard. It easily adjusts to fit 5-1/4" - 5 3/4" deckboards with a squeeze of the trigger, and provides automatic 3/16" spacing between boards. deck fastener TOOLS; MARKSMAN. Product information. Technical Details. Part Number, 345005. Item Weight, 7.2 ounces. Product Dimensions, 9 x 8 x 13 inches. Item model number, 345005.