Anti-backlash Nut and Spring Kit: These are standard size components that perfectly match T8 lead screws. Backlash Eliminating Nut Kit: Easy to install, offering high accuracy and silent operation. Premium Material: Crafted from POM and iron, this kit boasts high tensile strength, a low friction coefficient, and stable performance. Purpose: Primarily used to eliminate backlash in precision machinery, ensuring perfect workpiece alignment. Versatile Application: Ideal for accessories in precision machinery such as 3D printers and DIY engraving machines. Item Type: Anti-backlash Nut Material: POM Model: S8 Thread Specification: T-thread Pitch: Approx. 2 mm / 0.1 inch Diameter: Approx. 8 mm / 0.3 inch Lead Distance: Approx. 8 mm / 0.3 inch (one turn of the nut is 8 mm / 0.3 inch) POM Nut Compatibility: Compatible with CR10 / CR-10S / Ender-3 / 3S / 3 Pro 3D printers and other 3D printers. Screw mounting holes for these 3D printers are M3, with a distance of 18 mm / 0.7 inch between the two holes. 1 x Anti-backlash Nut 1 x Anti-backlash Spring 1 x Component