SELF DRILLING SCREWS CLASS 3 CLIMOGUARD COUNTERSUNK SQUARE HEAD

Self-drilling screws with a Class 3 Climoguard finish, countersunk head, and square drive are designed for external use, providing excellent corrosion resistance and a flush finish in various applications, particularly for fastening to steel framing.

 
Key Features and Specifications

Material and Finish: These screws are typically made from hardened carbon steel and feature a Class 3 mechanical galvanised (Climoguard) finish. This finish offers optimal corrosion resistance, making them suitable for external and industrial environments.
Head Type: The countersunk head (often with self-embedding ribs or wings) is designed to sit flush with the material surface, creating a clean aesthetic finish and preventing material bulging.
Drive Type: They feature a square drive (commonly #2 or #3 size), which is preferred for its resistance to cam-out and improved torque control compared to other drive types.
Point Type: As self-drilling screws, they have a drill-shaped point that allows them to cut through steel without the need for pre-drilling a pilot hole.
Applications: They are often used for applications such as attaching timber decking or fibre cement to steel framing, fastening metal to metal sheets, or securing hinges, brackets, and fixtures into steel.
Steel Thickness: The maximum steel thickness they can drill into varies by screw size and point type.
Coarse thread screws typically have a drill capacity of approximately 0.75-3.5mm of steel.
Finer thread screws can fasten into a range of steel thicknesses, with some variations capable of drilling through up to 12mm thick steel.