Package Included: 
1xT8-400mm Lead Screw 
1xCoupling Nut 
1xCoupling Shaf 
2xPillow Bearing Block

• Lead Screw: Diameter: 8mm, Pitch: 2mm, Length: 400mm
• Nut: Diameter: 8mm, Pitch: 2mm
• Mounted Ball Bearing: Bore diameter: 8mm
• Shaft Coupling: Shaft: 5 x 8 mm, Length: 25 mm, Diameter: 20 mm
• Widely use in 3d printer and cnc machine

Lead Screw: Diameter: 8mm, Pitch: 2mm, Length: 400mmWitbot