The heavy duty sleeve anchor is made from carbon steel, and is zinc plated. This anchor is designed for use in concrete, block, and brick.The anchor is designed for use in a dry environment.
The anchor is a acorn/open head and is designed to allow the head to sit on top of the surface of the item being attached.
The anchor requires a 1/4" hole to be drilled in the base material (Concrete, Block, and Brick). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.