ITW Brands 11413 3/8x3 Concrete Hex Anchor (10 per package) Steel hex washer head large diameter Tapcon concrete anchor Designed for fastening applications in concrete, block & brick Use them to attach electrical equipment lumber, shutters, hose reels, downspouts & more Topcon anchors are coated with blue climaseal for superior corrosion resistance Highly durable, crafted with steel