222 pcs Complete Hardware Kit: This set includes 80 screws (20 pcs each of M5-8mm, M5-10mm,M5-12mm),（14pcs M5-14） ,34 M5 slide nuts, 40 M5 T-nuts, 74 M5 washers and a m5 wrench for easy installation. MATERIAL: T-Nuts made of high-quality carbon steel nickel plated, The socket head cap screws are 10.9 grade alloy steel, strong and durable, high strength, not easy to rust Versatile Applications: Perfect for assembling 2020 series aluminum extrusion profiles, 3D printers, CNC machines, and other DIY projects. Organized Storage: Conveniently packaged in a transparent case, keeping all components neatly sorted and easily accessible recognize . NOTE: Before placing an order, please confirm whether the aluminum profile size is appropriate,2020 series. MATERIAL: T-Nuts made of high-quality carbon steel nickel plated, The socket head cap screws are 10.9 grade alloy steel, strong and durable, high strength, not easy to rust. SUITABLE FOR: 2020 Series European Standard Aluminum Profile. Widely used in manufacturing routers, 3D printers, robotics projects, etc. NOTE: Before placing an order, please confirm whether the aluminum profile size is appropriate WHAT YOU WILL GET: M5 T-Nut-40 pcs M5 Sliding nut-34 pcs M5x8 screws-20 pcs M5x10 Screw-20 pcs M5x12 Screw-20 pcs M5x14 Screw-14 pcs Wrench-1 pcs NOTE:Due to the difference between different monitors, the picture may not reflect the actual color of the item. WARM TIPS:Products contain small parts, please do not let children play, to prevent inadvertent swallowed. CUSTOMERS SERVICE:We will support lifetime garrantee and 100% money back for your problem, in addition, we offer 24H always online service, welcome to come to us if you need help.