TimberTech CONCEALoc® Hidden Fastener Gun Pail for Pneumatic, 500 sq. ft. a seamless and fastener- decking surface designed exclusively for TimberTech grooved boards. These brown-colored stainless steel clips blend ly with the framing in the gaps between deck boards, ensuring a and durable appearance. The gun pail contains collated carbon steel screws and clips covering 500 square feet, intended for use with the TigerClaw pneumatic installation tool from FastenMaster, which is sold separately. Please note that CONCEALoc fasteners are not compatible with steel or aluminum framing because the screw is driven at a 45-degree angle through the clip and into the joist. Model Number: CLOCGUNPAIL