0.9deg Round Nema 14 Stepper Motor Bipolar 0.65A 12Ncm/17oz.in &Phi;36x19.5mm 4-wires Compact Bipolar Stepper Motor, holding torque 16.7 oz-in/12 N.cm NEMA14 Round Frame 4-wires (Black, Green, Blue, Red) Drive 0.65A, 0.9deg Step Single round shaft is 5mm diameter and 10mm long