The Hillman #10-24 x 1-1/2″ Flat Head Self-Drilling Screw, available in packs of 100, is specifically designed for ease of installation in metal-to-metal or metal-to-wood applications. The #10-24 size denotes the screw diameter and thread pitch, suitable for projects where a finer thread is necessary to securely fasten materials. The 1-1/2″ length is ideal for thicker materials or when a deeper penetration is required. These self-drilling screws feature a flat head design that allows them to sit flush with the surface once installed, providing a clean and professional finish. The self-drilling point eliminates the need for pre-drilling, making them convenient for rapid installation in a variety of construction and industrial applications. Made from durable materials like steel with a corrosion-resistant coating, these screws are suitable for both indoor and outdoor use. They are commonly used in HVAC ductwork, electrical installations, sheet metal fabrication, and other projects where efficient and reliable fastening is essential. The Hillman 48179 screws offer strong holding power and are designed to withstand demanding conditions.