2 Pack Anti Backlash Spring Loaded Nut Elimination Gap Brass Nuts Z Axis Acme Threaded Rod Upgrade Kit for Ender 3s 3 Pro V2 CR10 Tornado 3D Printer

High precision Anti Backlash Spring Loaded Nut Material: brass Color: gold Function: 8mm acme threaded rod T8 lead screw upgrade kit Manufactured with premium brass material, durable and practical enough to use.The elimination gap nut has a smooth surface and burrs, and will not cause damage to the hand when installed.The upper and lower bases and the spring structure play the role of cushioning, decompression and shocks absorption.With pre-installed screw holes on the surface, it is simple and convenient to install.