1Set Trapezoidal Screw Nut POM Nut Screw Nuts T8 Nut 3D Printer Z Axis Trapezoid Motor Lead 1mm 2mm 4mm 8mm for Lead Screw Type : T8 nut Material : POM Pitch : 1mm Lead : 1mm (nut turn one circle,screw forward 1mm) Pitch : 2mm Lead : 2mm (nut turn one circle,screw forward 2mm) Pitch : 2mm Lead : 4mm (nut turn one circle,screw forward 4mm) Pitch : 2mm Lead : 8mm (nut turn one circle,screw forward 8mm) Package listing: 1pc lead 1mm 1pc lead 2mm 1pc lead 4mm â1pc lead 8mm .Item specifics:Model number: Screw NutsItem type: Screw Nut