Description:Item: T8 nut.Material: POM.Package: 1PCS.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) This nut use for T8 Screw(Diameter:8mm).