The Ramset Nylon Anchor is a removable light duty, impact/rotation setting, interference fit anchor, with a variety of head styles, designed for use in a variety of substrates such as concrete, stone, solid brick, solid block, grout filled block and hollow block. Available in multiple head styles for versatility. The drive screw's saw tooth thread makes it easy to drive and unscrew. Requires only small diameter holes for discreet fixing. Nylon body provides insulation between drive screw and work surface.