RVSurve 3/8" x 4" Large Diameter Concrete Screw 50 Pack - Heavy Duty Concrete Anchors, Masonry Screws for Brick, Block, Wood & Framing - Zinc Plated Hex Screws

Tired of Anchors That Fail Under Pressure? Our large-diameter concrete screws are engineered to tackle the toughest anchoring challenges. With a large 3/8-inch diameter and 4-inch length, each screw delivers enhanced load-bearing capacity and a secure grip in hard substrates. You can trust these concrete anchors for heavy-duty fixing applications.

Install with Speed and Ease—No Special Tools or Extra Parts Needed. Save time and simplify every job. These Concrete Screws feature a one-piece, fully threaded design—no separate sleeves, no complex steps. Just drill, drive, and achieve full load capacity immediately, even in dense masonry.

Built to Last in Tough Conditions. Made from galvanized carbon steel, these hex screws offer strong corrosion and oxidation resistance, making them ideal for both indoor and outdoor use—even in damp environments—for a reliable, long-term hold.

Versatile for Almost Any Heavy-Duty Task. Whether you’re installing scaffolding, guardrails, wall brackets, or securing items to concrete, brick, or stone, these anchors provide a trusted solution for both home and industrial applications. Their corrosion-resistant coating ensures reliable performance indoors and out.

Choose Your Exact Size and Quantity—No Waste, No Shortages. Available in diameters from 5/16” to 1/2” and lengths of 3”or 4”, packed in practical 25- or 50-piece sets. Match the right Concrete Anchors to your project scale—from quick repairs to full-scale construction—without overbuying or running short.