Description: Screw mainly used in stepper motor, Machine Tool, and other equipment. Screw without processing, direct connected to bearing . Lead screw was PVC tube packaging. Suitable for Industrial automation equipment, stepper motor rails; such as 3D printers; engraving machine; XYZ module; slider; lifts etc. The Lead Screw diameter: 8mm The Lead Screw Material: Stainless steel lead screw, copper nut Specification: Type:Vertical Package Includes: 2PiecexHorizontal screw stand 1PiecexNuts 1PiecexT8 Lead Screw 1PiecexWrench 1PiecexCoupling