One of the finest plastic anchors on the market today, the super plastic anchor has two tabs or "windows"on the neck of the anchor which expand out as the screw is driven in, ensuring stability and holding strength.
super plastic anchors
As the screw is driven further into the anchor,the ribbed body expands perpendicularly, producing a four-way expansion and a very dependable fixing. The super plastic anchor is used for medium and light duty fastening in concrete, masonry, drywall, etc.

super plastic anchors