Offering up to twice the strength of double expansion anchors, these US-made anchors expand in four directions for a superior grip in floors, walls, and ceilings. You can even use them to mount heavy machinery with constant motion, such as conveyors and vibrating feeders, because their ridges lock them in place to resist vibration. All of these anchors expand along their full length to distribute the gripping force, so they won’t crack soft materials. You can use them in concrete near edges, corners, or other weak points as an alternative to drop-in anchors.

To install, tap the anchor into a drilled hole. Insert a screw or threaded rod through your machinery and into the anchor. Then, tighten to expand the anchor. All create a permanent female-threaded connection that lets you remove and reinstall a screw or threaded rod.

Pair with large-diameter wood screws, often called lag screws, to secure heavy wood structures like beams and joists to block, brick, and concrete. As you tighten your screw, these anchors expand while their lobes grip the hole’s walls for a strong hold.

To install, tap the anchor into a drilled hole until it’s flush or slightly below the surface. Then, position your structure, insert a lag screw, and tighten. You can remove your lag screw to disassemble or adjust the structure. However, frequently removing the screw will weaken the strength. The anchor itself cannot be removed.