Polycarbonate Skylight Screws #12×2-3/8 - 50pcs Hex Flange Self-Drilling Screws For Metal

About This Product

If you're installing polycarbonate skylights or roofing, these specialized screws will make your job SO much easier! The genius design actually creates a perfect 11mm expansion hole while drilling and fastening in one step - no pre-drilling required, which saves about 50% of your installation time. The #12×2-3/8 size (12-14x60mm) with hex flange head gives you plenty of grip and the right length for most skylight applications. What's really smart is the built-in depth stop knurls that prevent over-driving and damaging your polycarbonate sheets. The expansion hole cutter creates exactly the right size hole for thermal expansion, which is crucial for preventing cracks and leaks as temperatures change. The corrosion-resistant Class 4 coating stands up to weather elements, and the domed EPDM washers create a watertight seal that keeps moisture out. Whether you're a professional roofer or a DIYer building a pergola or installing skylights, these screws take the guesswork out of proper installation. The 50-piece pack gives you plenty for your project with some extras. They're specifically designed for fixing polycarbonate sheets to steel substrates, making them the perfect choice for durable, professional-looking results that last!

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