ReliaBot 365mm T8 Tr8x2 Z Axis Lead Screw with Brass Nut Z-axis Upgrade Kit 2mm Lead for Ender 3 V2/Ender 3 V2 Neo/Ender 3 Pro/Ender 3/Ender 3 Neo/Voxelab 3D Printer

Packing list: 1 * T8x2 365mm lead screw 1 * T8x2 brass nut(flange cutted) The lead of the thread is 2mm, which means that the nut will move 2mm if the nut turns one circle. The advantages of the lead screw are: Large load carrying capability Compact Large mechanical advantage Precise and accurate linear motion Smooth, quiet, and low maintenance, very suitable for 3D printer z axis. Minimal number of parts So this lead screw is very suitable for 3D printer Z axis, such as Ultimaker and Prusa i3. The screw type of this lead screw is ACME thread. ACME Threads are generally stronger than square threads due to their trapezoidal thread profile, which provides greater load-bearing capabilities.