[Specifications]: Body Length: 42mm / 1.66inch; Step Angle: 1.8 degree; Phase: 2; Rated Current: 1.7A; Shaft Diameter: Φ10mm, Shaft Length: 350mm, 2 phase, 4 wires; Phase Resistance: 1.8Ω; Phase Inductance: 4.2mH; Holding Togque: 0.4Nm (56.64oz.in); Rotor Inertia: 57g.cm²; Weight: 291g. [Includes]: Come with 1PCS 42x42*40*350mm Nema 17 350mm lead screw stepper motor, a brass nut with 1m wiring harness for connector. If you have any concerns or questions during the purchasing process, our customer service team is ready to assist you. [Strong Adaptability]: Lead Screw stepper motors are well-suited for diverse environments, including high temperature, low temperature, and high humidity, making them widely utilized across various industrial applications. [Quality materials]: NEMA 17 lead screw stepper motor are made of copper and alloy steel as well as advanced insulation materials to ensure good durability and reliability. [Multiple Applications]: The lead screw stepper motor is widely used in a range of automation and intelligent applications by controlling, positioning, adjusting, and performing a variety of complex motion tasks. BESJMYT Nema 17 Stepper Motor Integrated 13.78in/350mm T8 Lead Screw Low Impedance 1.7A 0.4Nm/56.64oz.in. Bipolar High Torque 42x40 Motors 2 Phase 4 Lead for 3D Printer CNC Injection Molding machine