TimberTech Cortex Tigerwood Hidden Fasteners for PRO and EDGE, 100 Ln. are the strongest hidden fastener system ed by TimberTech, designed to deliver an ultra-clean, high-quality finish to your deck. These fasteners come with color-matched plugs that blend seamlessly with your Tigerwood decking, enhancing the overall aesthetic. Featuring a specialty ACQ- deck screw with a TORX ttap drive system, they provide exceptional strength and durability. Unlike other hidden fastener systems, Cortex fasteners are versatile enough to be used across the entire deck surface, including stairs and perimeters. Please note that these fasteners are compatible with all full-profile TimberTech deck boards except scalloped boards from the Terrain, Prime, Prime+, and Reliaboard collections. Installation requires predrilling with a 7/32" drill bit to pilot a hole halfway through the deck board without penetrating the framing. Cortex for PRO EDGE is not compatible with metal framing; for steel framing, separate Cortex Drillers from FastenMaster are needed. This pack covers 100 linear feet and includes 224 carbon steel screws and 300 plugs, making it an i choice for a strong, clean, and professional deck finish. Model Number: CTX100LCTW