Concrete Anchors

Install holds onto concrete, brick, or rock surfaces Works with industry-standard 3/8-16 bolts Expansion anchor works best for hollow blocks Drop-in anchor is best for concrete or bricks These anchors are used to install climbing holds in solid or hollow block walls. Use the Drop-in option for brick walls, solid concrete walls, and rock faces (setting tool required). The Expansion option is best used in cinder block applications. Each anchor has five threads.