SCREW SIZE & DRILL COMPATIBILITY: Fastenere #10 (0.190") deck screws feature a straight pilot drill size of 1/8" for soft wood and 9/64" for hard wood, ensuring smooth installation for various wood types including composite and Trex materials. OPTIMAL SIZE FOR STRUCTURAL USE: With a screw length of 1-5/8" (1.625") and a head diameter of 0.345", these screws are ideal for structural applications like pole barns, decking, and other heavy-duty installations requiring superior strength. DRIVE TYPE: Equipped with a #2 Robertson (Square) drive, Fastenere screws offer superior torque transfer for enhanced ease of use, making them ideal for cabinet construction, trailer assembly, and other DIY projects. DESIGNED FOR WOOD AND COMPOSITE DECKING: Featuring a Type-17 auger point, these stainless steel deck screws easily tap into wood, composite, and Trex decking materials, ensuring secure, lasting performance in all your outdoor projects. PREMIUM MARINE-GRADE STAINLESS STEEL: Made from highly corrosion-resistant 316 Marine Grade Stainless Steel, ideal for exterior construction, decking, trailer, and roofing projects. Resists rust and ensures long-lasting durability. Fastenere offers a premium solution for your construction needs with these high-performance deck screws, designed to provide reliability and long-lasting performance. Constructed from marine-grade stainless steel, these screws offer exceptional strength and resistance to corrosion, making them an ideal choice for outdoor projects exposed to the elements. Whether you're working on decking, cabinetry, or fencing, these screws ensure a secure and stable hold, even in challenging conditions. The screws feature a precision-engineered type-17 auger thread cutting tip, which allows for effortless installation into various materials like wood, composite, and other decking surfaces. This thread cutting tip not only makes driving easier but also reduces the risk of material splitting and enhances the screw's holding power. The bugle head design is specifically crafted to allow the screw to sit flush with the surface, preventing any raised edges and offering a clean, smooth finish. Additionally, the screws are equipped with a Torx 25 drive system, ensuring a tight, slip-resistant fit for superior torque transfer during installation. A Torx 25 bit is included with every pack, making the process even more convenient and efficient. Perfect for a wide range of applications, these screws are engineered to perform well in demanding environments, whether you're working on a deck, trailer, or structural project. Fastenere's deck screws provide a versatile, durable, and cost-effective solution for both professionals and DIY enthusiasts, ensuring that your projects stand the test of time while maintaining a polished, professional look.