Iverntech NEMA 17 Stepper Motor with Integrated 400mm Tr8x8 Lead Screw, much stable than shaft coupling connecting
High torque nema 17 stepper motor, 400mN. m/ 57.1 oz. in, 42mm, 2 phase 4 wires
Come with a brass nut and 1M ( 39.37 " ) motor wire
2mm pitch, 4 starts, 8mm lead
Great replacement for the Z axis of prusa i3 3d printers