2pcs 500mm Tr8X2 Lead Screw with T8 Brass Nut for 3D Printer Machine Z Axis(Acme Thread, 2mm Pitch, 1 Start, 2mm Lead)

I bought these for my custom Ender extender for a 550 build height and they are literally the exact same as what comes on the Ender 3 Pro and V2 just really long. The original Ender extender was not tall enough for me so I decided to go with this and the 600 mm 2040 V slots and I couldn't be more happy with it as you can see in the picture how much taller and wider this is than my S1 to the left and V2 on the right

I used these to set up a dual Z on my Ender 3 Max and they worked great.

Acme thread on the screw fit nicely in the nut. I used this with a stepper motor to drive a trombone capacitor in and out.

Shipped to me with great timing for my printer build.

Both of the 350mm rods had in excess of 1.5mm runout.

I couldn't believe these were exactly like they were listed. I was afraid I would accidentally get a standard-type rod, but this was exactly as stated.They came packed nicely in a cardboard box, straight as could be.

Perfect for my ender 3 with the kit i have. Did a video. These go up higher and i get a extra 10mm.

I purchased 8 rods, all 8 were bent.

Worked perfect on the max

Me sirvió mucho para actualizar mi Ender 3 Max con la aplicación de el doble motor para el eje Z.Excelente compra los componentes son de buena calidad y llegaron antes de lo esperado.

the box was on the big side but the t8 lead screws are nice and straight, thanks good seller ;)_

Thanks you they are perfect

One of the lead screw came in bent. The other one was perfect.