The ALLIGATOR solid-wall anchor is the only anchor that extrudes the entire length of the screw.
The screw extrudes and compresses the anchor polymer into the wall of the hole under tremendous pressure. The anchor molds and conforms exactly to the surface of the holewithout chemicals.
All forces supported by the screw are transmitted outwardly 360° to the wall surface of the hole. This provides greater holding power by distributing the force over the maximum area possible.