1204 Ball Screw for Nema17 Linear Stepper

Diameter 12mm, 4mm pitch Ball Screw n Nut
250mm working length, Anti-backlash Nut 35mm long and 10mm BF10 machine end,  341.5mm total length
300mm working length, 391.5mm total length Gcr15 Steel

One end machined for 17HS5005-K6 Hollow Shaft Stepper and the other end for BF10 support unit.

How to couple a stepper motor with ball screw?

RobotDigg can Custom machine the ball screw for your application.