225 Pack, 3/16" x 1-1/4", Blue Steel Flat Head Phillips Concrete Anchors, Designed For Fastening Applications In Concrete, Block & Brick, Use Them To Attach Electrical Equipment Lumber, Shutters, Hose Reels, Downspouts & More, Crafted With Steel, Tapcon Anchors Are Then Coated With Blue Climaseal For Superior Corrosion Resistance.