Tr12x4 right and left hand lead screw 

Product Description Low friction Tr12x4 right and left hand lead screw Material Stainless Steel,1405 carbon steel,SUS303,SUS304,Ductile cast iron ,others available upon request Dimension Diameter : 12mm, Lead : 4mm Thread Direction Bi-directional ( Left hand and Right hand all available) Accuracy Grade 7e Application Automatic controlling machines, semi-conductor industry, general industrial machinery, machine tools, medical equipment, parking systems, measuring instrument, Automatic computer strip machine, Gantry cranes, Gantry robot, 3D engraving machin…

Bi-directional Ball Screw Customized Design Nut Round Nut With Flange Anti-backlash Nut Metric Thread Screw