Order this Red Head Sleeve Anchor for delivery. Designed for fastening into porous concrete, hollow or grout-filled block and brick. Ideal for hand rails, window frames, partitions, cabinets, shelves and pipe supports. Anchor diameter equals hole diameter. Zinc plated carbon steel. Provides full 360° hole contact over large area and reduces concrete stress. Heavy-loading capacity. Preassembled for faster, easier installations. No pre-spotting of holes necessary. Includes pre-assembled nut and washer.