Securing a park bench to a concrete slab is crucial for safety, theft prevention, and long-term stability. The best fasteners are concrete anchors designed to handle shear and tensile forces. For permanent, heavy-duty installations, wedge anchors are the top choice. Made of steel, they expand inside the concrete for an incredibly strong hold. Lag shield anchors (lead shields) are another excellent option, where a lag screw expands a lead sleeve against the concrete. For applications where you might need to remove the bench later, concrete screw anchors offer strong holding power with easier removal.
The key to success is proper installation. Always drill holes in the concrete using a hammer drill and a carbide-tipped masonry bit sized exactly for your anchor. Clean the hole thoroughly of all dust before inserting the anchor. Ensure the bench's mounting brackets align perfectly with the holes. Tighten the nuts or screws to the manufacturer's specified torque to achieve the correct clamping force without overtightening. Using the right anchor and following these steps will ensure your park bench remains securely fastened for years to come.