This Phillips wafer head screw with black phosphate finish features a uniquely designed reversed thread near the tip. It is mainly used for fastening thin metal studs, aluminum panels, gypsum boards, and wood. The wafer head provides a larger contact surface, concentrating the driving force at the screw tip. With no need for pre-drilling, the wafer head self drilling screws can quickly and efficiently penetrate sheet materials, improving installation speed and performance.
The special reversed thread at the end enhances the screw’s holding power—once tightened, the reverse thread locks the materials securely in place, significantly increasing the pull-out resistance and ensuring a firm and lasting connection.
Available in multiple finishes, including blue-white zinc plating, gray phosphate, and black phosphate, to meet various corrosion resistance and aesthetic needs. These screws are widely applicable in wood and metal constructions and are often referred to as wafer head screws self drilling or wafer head self tapping screws.
Free samples are available for testing. Please feel free to contact us at any time. We look forward to the opportunity to work together.
