Features 1、The thread rod is made from high quality 304 stainless steel for durability and long service life 2、Special anti backlash nut, high precision, low cost DIY engraving machine, 3D printer preferred 3、3D printer part, T8 threaded rod lead screw suitable for 3D printer 8mm dia. 2mm pitch 4、It can also be used on home built CNC mill to do wood and plastic projects 5、Highly recommend to someone who needs an anti-backlash nut for their 3d printer or whatever Specification Features: The thread rod is made from high quality 304 stainless steel for durability and long service life. Special anti backlash nut, high precision, low cost DIY engraving machine, 3D printer preferred. 3D printer part, T8 threaded rod lead screw suitable for 3D printer 8mm dia. 2mm pitch. It can also be used on home built CNC mill to do wood and plastic projects. Highly recommend to someone who needs an anti-backlash nut for their 3d printer or whatever. Specifications: Length: 300mm, 400mm (Optional) Material: 304 stainless steel Diameter: 8mm / 0.31" Pitch: 2mm / 0.078" Lead: 8mm / 0.31" Quantity: 1 Package Includes: 1 x Threaded Rod and Nut Package List