Lead screw diameter 8mm, length 500mm
Copper nut, with 4 holes for fixing to the machine
Thread: Acme thread
Screw pitch: 2mm; Lead: 8mm
If you want higher accuracy, it is recommended to use the anti backlash copper nut

Size:T8x8
The lead of the thread is 8mm, which means that the nut will move 8mm if the nut turns one circle.
The advantages of the leadscrew 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.
colour:Silver + gold
Material:stainless steel

Package Contents:
2 * 500mm lead screw
2 * copper nut