300mm T10 Tr10x2 Lead Screw and Brass Nut Kit (Acme Thread, 2mm Pitch, 1 Start, 2mm Lead) for 3D Printer and CNC Machine Z Axis

I use this in my inductor winding machine.

Awesome quality! The screw is perfectly strait and machined perfectly.

Nice lead screw BUT, mine was not straight. It had a slight bend that I required some gentle adjustment with a hammer. Should have returned it but was in a hurry.

The lead screw that I received was noticeably bent, which doesn’t help when it comes to accuracy. Also, the ball nut threads are a low grade tolerance because there is a lot of play in the nut. In my opinion, a higher tolerance tap should be used to make these nuts. It would reduce backlash, and it would also reduce the slop. There is no reason that these ball screws should arrive bent, There is no reason for the nuts to be made to this subpar quality standard there isno reason at all that I can think of. If you want return customers make a quality part.

Good

The screw came in just as promised, however I'm currently still in the processes of assembling the final project so I cant speak to the screws potential under load.

The lead screws were well made. They work as intended. If you intend to use these for power transmission, CHECK to see if you can find nuts for the 2mm thread pitch. These nuts are hard to find!

Threads on nut were pretty loose on the rod. My application is only loaded from one direction all the time so not a big deal. Too much slack to drive in both directions accurately without either a spring loaded nut or software compensation or both.

Thanks