This comprehensive M5 screw and nut kit is perfect for assembling and securing 2020 series aluminum extrusion profiles. The kit includes a wide variety of M5 screws ranging from 8mm to 14mm in length, with quantities of 40 or 20 pieces each, as well as M5 slide nuts and T-nuts, totaling 240 pieces. A handy wrench is also included for easy installation. With this all-in-one set, you have everything you need for your 20x20mm aluminum extrusion projects. The screws and nuts are made of high-quality stainless steel for durability and corrosion resistance. The organized case keeps all the components neatly sorted and accessible. Whether you're building furniture, workbenches, or DIY projects, this kit simplifies the assembly process and ensures a secure fit every time.