3D Printer 100-600mm 8mm T8 Threaded Rod Lead Screw Anti-Backlash Nut Kits. Optional Length: 100mm, 200mm, 300mm, 400mm,500mm, 600mm,1000mm. 1 x T8 Anti-Backlash Nut kit. Lead: 8mm (4 start, 8mm per turn).
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