Specifications:

Lead Screw:
Material: Stainless steel lead screw, copper nut
Screw diameter: 8mm
Length: 200mm
Screw Pitch: 2mm
Lead of thread: 8mm

Screw Nut:
Material: Brass
Diameter: 8mm
Pitch: 2mm
Lead: 8mm

T8 Anti-backlash Nut:
Material: Stainless Steel Copper Nut
Screw diameter: 8mm
Screw Pitch: 2mm
Lead of thread: for 8mm

Shaft Coupling:
Material: Aluminium
Shaft: 5x5mm, 5x8mm
Length: 25mm
Diameter: 19mm