HEAVY DUTY WEDGE ANCHOR – These concrete anchors are built for reliable performance. These wedge anchors deliver strong holding power in concrete, fully grouted block, or cement ZINC-PLATED FOR RUST PROTECTION – Each anchor is made of carbon steel with a zinc coating to resist corrosion in dry indoor environments, offering durability where it matters most. SIMPLE ONE-SIZE DRILLING – No guesswork: the drill bit size matches the anchor diameter, making these anchor bolts for concrete quick and simple to install with clean results every time. HARDWARE INCLUDED WITH EACH SET – Each pack of wedge anchors comes with nuts and washers, giving you everything you need for a fast and secure install right out of the box. SECURE HOLD – Engineered for consistent expansion under tension, the anchor locks into place during installation and offers follow-up expansion when under load, increasing holding strength. PERFECT FOR CONCRETE – Use as brick anchor bolts or masonry anchors for fully grouted concrete block—ideal for fastening machinery, racking systems, structural supports, and fixtures into solid base materials. Surge Building Product's concrete anchors are heavy-duty wedge-style expansion anchors designed for secure, long-lasting fastening in solid concrete, fully grouted block and cement. These torque-controlled anchor bolts for concrete provide consistent performance making them ideal for a wide variaty of applications. Each concrete anchor features a fully threaded carbon steel body with a corrosion-resistant zinc-plated finish and a one-piece expansion clip engineered for reliable grip under tensile load. A matched nut and washer are included with every anchor for fast, secure installation with no extra hardware required.