Ball Screw CNC Parts SFU1605 RM1605 16mm 1000mm with Metal Deflector Ball Screw nut BK/BF12 End Supports Ball NUT HOUSINGS 1pcs Coupler with end Machining,Length Approx 39.37inch/1000mm

Well built had all of the necessary parts and fast shippiung

The pvc pipe it shipped in was split and broken in two. the box seemed ok and the ball screw looks good.

Absolutely nothing love how it was packaged even.

It seems to me that a critical dimension for the ball screw is how much travel it has. The overall length is important too of course, but that's not fundamental to the operation. Overall length is 1200mm, travel is 900mm!!!! In fact the box inside the box clearly labeled these as being 900mm ballscrews. This could be a significant problem, it's not what I wanted, but these are just for a fun project for me so it's not the end of the world. Weirdly Amazon shipped each one of these (I bought 4) in a HUGE box with no padding. Like you could have fit 12 of these inside one of the boxes that Amazon used.

Wow, this is exactly what I wanted. It's not obvious in the photos, but one end block is 10mm and the other is 12mm. The screw has a 12mm end with threads that fits through the larger block and a special capture nut is included for it. The other end is 10mm and fits the other block. It also include a coupler, but that was too small for my stepper motor, but not a problem.

Very well package. Came flawless. Thank you.

Threw it in the garbage shortly after opening