Caliburn Concrete Screws 1/4 x 2-3/4 -Bulk

Deck Elite Decking Screws: For Elevated Craftsmanship.

GRK Caliburn™ Concrete Screws are professional-grade fasteners designed for secure anchoring in concrete and masonry, featuring a patented thread that drives easily into pre-drilled holes while delivering exceptional holding strength. Their aggressive thread design locks firmly in place—often eliminating the need for anchors—and allows for removal and reinsertion without compromising performance. A recessed star drive ensures smooth, low-slip installation, while the durable Climatek™ coating provides long-lasting corrosion resistance for both indoor and outdoor use, making them ideal for wood-to-concrete applications like framing, decking, and structural connections.

Key Features

• Patented thread design: smooth driving into pre-drilled concrete and masonry
• Heavy-duty threads: exceptional holding strength and pull-out resistance
• Recessed star drive: reduces stripping for easier installation 
• Removable and reusable: in the same pilot hole without damaging threads
• Climatek™ coating: high corrosion resistance for indoor and outdoor use
  

Ideal Applications

• Wood-to-concrete fastening
• Deck construction
• Basement framing 
• Heavy-duty anchoring in concrete, block, and masonry