These polycarbonate fixing buttons are designed to securely attach multiwall polycarbonate sheets to timber sub-frames using central fixings. They are suitable for 16mm sheets and feature a flexible foam washer and screw caps for effective sealing and weatherproofing, while also providing a barrier against wind uplift to enhance structural stability. Key features: * Secure multiwall sheets to purlins and rafters * Suitable for 16mm polycarbonate sheets * Foam washer provides waterproof seal * Prevents slippage and wind uplift Our Polycarbonate Fixing Buttons offer the perfect solution for securing Twinwall and Multiwall polycarbonate sheets in all your outdoor projects. Designed for both functionality and visual appeal, these buttons provide reliable support while enhancing the overall aesthetic of your roofing installation. Colour-matched to complement our range of glazing bars and end closures, these fixing buttons help conceal fixings for a seamless, professional finish. The result is a clean, polished look that blends effortlessly with your polycarbonate sheets, giving your project a refined and eye-catching appearance. Crafted from durable polycarbonate, these fixing buttons are built to withstand all weather conditions, ensuring your polycarbonate roofing stays secure and visually striking for years to come.