The MyWish 200-Piece Concrete Screws Kit is the ultimate solution for all your masonry, concrete, and brick fastening needs. Designed for durability, these self-tapping carbon steel screws have been rigorously tested for heat resistance, corrosion resistance, and anti-rust performance, ensuring reliable performance in tough environments. With flat and hex heads, this assortment provides a variety of sizes for all your projects. This versatile kit includes masonry drill bits for easy installation in concrete, mortar, blocks, and bricks, making it perfect for use in homes, offices, furniture assembly, courtyards, and more. The 200-piece set includes both Phillips and hex head screws in multiple lengths (3/16 x 1-1/4, 3/16 x 1-3/4, 1/4 x 1-1/4, 1/4 x 1-3/4), as well as 2-extra drill bits and a portable storage box to keep everything organized and ready for use.