Suitably Packaged for Immediate Use: the package contains a generous 100 pieces of m5 thread T spring nuts, ably meeting your needs for any industrial or personal projects; The steel coil in the T-slot nut is compatible with various T-slot fittings, making it suitable for a variety of applications Precision Engineered for Installation: the m5 half round roll in spring t nuts are precisely engineered, allowing it to be inserted only from the end of the profile, ensuring reliable connection strength and reliability; It effortlessly slides into the T-slot of the aluminum profile with the rear spring ball effortlessly fixing its position, thus simplifying the installation process significantly Sturdy Material for Enhanced Durability: these m5 thread t spring nuts are made from quality carbon steel, ensuring high hardness and longevity; The metal-plated surface provides an additional layer of protection with outstanding anti-rust performance Well Sized for Convenience: with dimensions of length 0.51 inches/13 mm, height 0.17 inches/4.4 mm, width 0.32 inches/8.2 mm, and an M5 thread, these European standard 20 series t nuts are suitable for 20 Series Aluminum Extrusions with a wall thickness of 1.5 mm; please refer to the pictures to confirm the size before purchase Multipurpose Utility Across Industries: from building industrial aluminum frame structures, 3D printers, CNC routers to CNC laser cutting machines, 3D engraving machines, machine guards, workstations and even robotic projects, these m5 thread t spring nuts have a wide range of applications Features: These m5 half round roll in spring t nuts can be easily and swiftly installed into T-slot accessories, offering a valuable solution to save time and effort in your installation process. Broaden your range of construction and industrial applications with these easily installable and reliable nuts. The sliding nut type makes these m5 thread t spring nuts suitable for 20 series aluminum extrusions, with an accommodating 6mm T-slot. Owing to their compatibility with various T-slot accessories, they are apt for diverse applications. Specifications: Material: carbon steel Color: silver Size: 0.51 x 0.32 x 0.17inch /13 x 8.2 x 4.4mm(LxWxH), thread M5 Package includes: 100 x M5 thread T spring nuts Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.