ITEM NAME:T8 330mm Stainless Steel Lead Screw Shaft Coupling Mounted Ball Bearing #2 Description: - 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. Specification: - Material: Stainless Steel Package Included: 1 Set of T8 Mounted Ball Bearing, Nut and Rod.3D printer part, T8 threaded rod lead screw suitable for 3D printer 8mm dia. 2mm pitch. 1 Set of T8 Mounted Ball Bearing, Nut and Rod. - Special anti backlash nut, high precision, low cost DIY engraving machine, 3D printer preferred.