Concrete Anchor Screw 5/16" x 3" Hex Head

Engineered for professionals and DIY enthusiasts alike, this 5/16" x 3" concrete anchor screw delivers exceptional holding power in masonry applications. The fully threaded, large-diameter design taps directly into concrete, brick or block—no shield or sleeve required. With an external hex head that accepts common wrenches and sockets, installation is fast and secure, reducing downtime on every job.

Built from high-strength alloy steel and rated Grade 8, this anchor resists bending and shear forces while providing long-term durability. Whether you’re securing sill plates, electrical boxes, or structural framing, these screws ensure a reliable bond that stands up to vibration, wind loads and weather exposure.

Key Features

• Fully threaded, right-hand UNC threads for maximum grip
• External hex drive system for quick, tool-friendly installation
• Large-diameter tapping design installs faster than wedge or sleeve anchors
• Alloy steel construction with corrosion-resistant finish
• Ideal for concrete, brick and hollow-block substrates
• Precision-machined tip reduces installation torque