Certifix countersunk head A4 stainless 6.3 x 57 masonry screw

Secure timber battens, trunking, tracks, and other general components with confidence using this robust Certifix masonry screw. Made from high-grade AISI 316/ A4 stainless steel, this screw offers exceptional corrosion resistance, making it ideal for use in harsh environments. Its countersunk head (12mm) creates a neat, flush finish while maximizing grip on the installed component. This versatile screw is perfect for fixing a wide range of items in concrete, masonry, or timber. The standard Phillips drive allows for easy and efficient installation, saving you time and effort on your project. For long-lasting performance, the screw boasts an electroplated zinc coating of at least 5 micrometers with passivation, providing additional protection against corrosion. Additionally, the hardened drilling point (SAE C1018 / C1022) ensures smooth penetration into the chosen base material, be it concrete, masonry, or timber.