Replace mechanical expansion anchors with Fixings Direct's non-expansion Concrete Bolts & Screws. Often called "Thunderbolts" or "Ankerbolts," these self-tapping fixings cut directly into masonry for a stress-free hold. Ideal for close-to-edge fixing, they are perfect for securing racking, timber plates, and starter bars. Just drill and drive for a rapid, high-load installation. Shop the heavy-duty range now.
