Timco Countersunk Ribbed Self-Drilling Screws, Zinc, 3.9x16mm (1000pc)

The Timco Countersunk Ribbed Self-Drilling Screws (Size 3.9x16mm) are premium-quality fasteners designed for easy installation and secure fastening in metal-reinforced frames. These versatile screws feature a self-drilling point that eliminates the need for pre-drilling, making them ideal for efficient applications. The zinc finish adds corrosion resistance, ensuring long-lasting durability in various environments.

With a countersunk head design and ribs underneath, these screws provide improved countersinking performance and a flush finish. The Phillips (PH) recess allows for quick and straightforward driving with compatible screwdrivers or power tools. Made from carbon steel, these self-tapping screws offer enhanced strength and reliability for heavy-duty applications.

Applications

These screws excel in window fabrication and general construction, particularly for securing hardware to steel or aluminium-reinforced frames. Whether you're working on window fittings, cladding systems, or other structural applications requiring metal fastening, these self-tapping screws ensure a robust and lasting hold.