The Performance Flat Head CSK Structural Screws are a premium range of heavy-duty, black anodised fasteners designed for high-strength timber applications and professional decking projects. Engineered for durability and ease of installation, these structural screws offer a flush finish and long-lasting corrosion resistance in both internal and external environments.
Key Features:
  
Countersunk (CSK) Head: The flat head sinks flush into timber surfaces, making them highly effective as heavy-duty decking screws where a smooth, trip-free finish is required.
  
Black Anodised Finish: Provides excellent protection against rust and weathering, while offering a clean, discreet look on dark timbers or modern composite decking.
  
TX Drive System: The Star/TX drive head prevents cam-out and ensures maximum torque transfer when driving into dense woods.
  
Impact Bit Included: Every box of 50 screws includes a matching impact driver bit to fit the TX head perfectly.
Specifications:
  
Finish: Black Anodised
  
Quantity: 50 screws per box (plus 1 x impact bit)
  
Head Style: Flat Countersunk (CSK)
  
Drive Style: TX Drive