19/64 In. X 3-1/2 In. L Star Bugle Head Self Tapping Concrete Screws

GRK Fasteners Caliburn XL concrete screws are professionally engineered fasteners designed for secure fastening into concrete and similar materials. These heavy-duty construction screws feature a patented thread design that makes driving into concrete easier while delivering exceptional strength and reliability. Whether you're securing fixtures, anchoring frames, or working on outdoor structures, Caliburn XL screws provide the performance needed for both professional contractors and DIY enthusiasts.

The Caliburn XL's star bugle head and aggressive thread design make it an excellent alternative to traditional anchors in many applications. The Climatek coating provides high corrosion resistance, ensuring durability in harsh environments. A key advantage is the screw's reusability—the thread design allows removal and reinsertion into the same pilot hole multiple times without concern of the fastener breaking or threads wearing, saving time and material on repeat projects.

Features and Benefits

• Patented Thread Design: Engineered for ease of driving into concrete, reducing installation time and effort.
• High Pull-Out Strength: 3200 lb pull-out strength makes these screws a reliable replacement for traditional anchors in many applications.
• Corrosion Resistant Coating: Climatek coating provides protection against harsh environments and extends fastener longevity.
• Reusable Design: Can be removed and reinserted into the same pilot hole multiple times without fastener breakage or thread wear.
• Versatile Head Style: Star bugle head accommodates multiple project types and fastening requirements.
• Concrete and Wood-to-Concrete Fastening: Suitable for fastening into concrete and securing wood to concrete applications.

Specifications

• Brand: GRK Fasteners
• Model: 57778
• Size: No.18 x 3-1/2 in L
• Diameter: 19/64 in
• Head Style: Star bugle head
• Material: Steel with Climatek coating
• Pull-Out Strength: 3200 lb
• Pack Quantity: 25 screws