uxcell 100mm Length T8 8mm Dia Lead Screw Rod,4 Lead Stainless Steel Lead Screw Rod with Copper Nut Trapezoidal Thread for 3D Printer Z Axis2pcs industrial_Dec2022 but it is highly recommended

but it is highly recommended to install it

Optional Features (Basic

Segment height: 7mm

25 Ounces Kit Includes: 1 x Apple Pencil Sleeve 2 x Self Adhering Metal Strip 1 x User Manual Read more Extensive Application Applicable to various magnet-friendly surfaces including certain magnetic ipad cases and smart covers

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uxcell 100mm Length T8 8mm Dia Lead Screw Rod,4 Lead Stainless Steel Lead Screw Rod with Copper Nut Trapezoidal Thread for 3D Printer Z Axis2pcs industrial_Dec2022 but it is highly recommendeduxcell 100mm Length T8 8mm Dia Lead Screw Rod,4 Lead Stainless Steel Lead Screw Rod with Copper Nut Trapezoidal Thread for 3D Printer Z Axis2pcs Features: Copper nut, with 4 holes for fixing to the machineNut turn an around move 4mmScrew nut made of copper,durable and wear resistingUsed on stepping motor driving guide rail,machine tool, and other equipment. Fit for 3D printers, engraving machine, etc Specification: Material: Stainless Steel Lead