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. 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.