These concrete screw bolts are designed for reliable and cost-effective fastening into concrete and masonry. With a deep-cut helical thread that cuts its own path, these anchors ensure a solid hold without the need for expansion plugs. The galvanised coating offers excellent protection from corrosion, making them suitable for both indoor and outdoor applications. Perfect for construction and engineering tasks that don\’t require certified anchors, these bolts are easy to install with a hex head driver.