8HY SeriesMode/StepAngle/MotorLength/RatedCurrent/HoldingTorque /lead Wire degree mm A N.cm Min 20BYGH2402 1.8 28 0.2 1.4 4 20BYGH2406 1.8 28 0.6 1.4 4 20BYGH3402 1.8 34 0.2 1.8 4 20BYGH3406 1.8 34 0.6 1.8 4 20BYGH4402 1.8 40 0.2 2.6 4 20BYGH4406 1.8 40 0.6 2.6 4