Description:Hollow-Wall provides a secure hold in concrete, block, brick,plasterboard, and stone.for attaching brackets, drywall track, gutters, downspouts and electrical boxes, can meet your different needs.Nylon pipe and carbon steel zinc plated finished eye screw hook constructed, suitable for any acid and alkali environment.Do not need to pre-drilling holes. Harmmer-driven and screw-and screw-in hook to expand and grip the mounting material.Quick, easy to installed and firm.
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