This product features a colored painted hex head self-drilling screw with a 0.5+2.0mm composite EPDM bonded washer. The integrated washer provides excellent sealing and waterproof performance, enhancing the screw’s rust resistance and ensuring long-term durability. With its drill-point tail, it can easily penetrate metal sheets up to 3mm thick without pre-drilling, significantly improving installation efficiency.
The colored painted screw head and washer blend seamlessly with the construction surface, achieving a visually unified appearance.
Popular sizes include 5.5x19mm, 5.5x25mm, and 6.3x25mm, which are widely used in metal roofing and siding applications. These screws are ideal for connecting colored steel panels and thin metal frames. Our 7/16 hex head self tapping screws, 1 inch metal roofing screws, 25mm roofing screws, and 2 inch metal roofing screws are available upon request.
If you are interested, we are happy to offer free samples for your quality inspection. Please feel free to contact us anytime.
