Specification: Length: 100mm, 150mm, 200mm, 250mm, 300mm, 330mm, 350mm, 400mm, 500mm (Optional) Thread Pitch: 2mm of Thread: 8mm Application: For 3D printer Working temperature: 100 Working pressure: 100 Material: Screw stainless steel; nut brass Color: Screw silver; nut: gold Package weight: 48 to 172g Package List: 1 x Screw Rod 1 x Nut