ITEM NAME:2 Phase 4 Wire Stepper Motor With Long Lead Screw 5*6.8 MM Micro Stepper Motor Z a.imagelink a:hover.imagelink {color:#db3606;.Model Stepper Motor. Pitch: 1.6mm. Screw length: 44 MM. Motor specifications: 5 6.8 MM. Motor height: 14.5 MM. MPN Does Not Apply.