T8 lead screw double guide rail set What it does and why you need it Provides smooth, stable linear motion for positioning and actuation tasks. The dual guide rails reduce wobble and rotation compared with a singlelead setup, improving alignment and repeatability in shorttravel applications. Built for durability and corrosion resistance: a copper nut minimizes wear and friction while the screw rod is made from stainless steel 304 for long service life in common workshop and light industrial environments. Compact and easy to integrate with standard hardware — designed for straightforward installation in printers, CNC devices, lab rigs, and automation projects. Key specifications Name: T8 lead screw double guide rail set Guide lengths available: 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm, 450 mm, 500 mm, 600 mm Material: copper nut + stainless steel 304 screw rod Lead: 8 mm; Pitch: 2 mm Coupling: 58 coupling (compatible with standard 5–8 mm shaft adapters) Benefits and performance Consistent linear travel: 8 mm lead with 2 mm pitch provides predictable motion per rev for accurate positioning. Low friction and reduced wear: copper nut combined with stainless 304 screw rod keeps backlash and maintenance low over repeated cycles. Improved rigidity: the double guide rail layout resists torsion and deflection, especially useful for short to medium travel lengths listed above. Easy compatibility: works with common steppers, motors, and shaft couplings specified by the 58 coupling dimension. Typical applications 3D printers and desktop CNC machines — for Zaxis or bespoke linear stages needing stable vertical motion. Small automation and assembly fixtures — accurate, repeatable linear movement for pick/place or test rigs. Robotics and lab equipment — compact actuator solution where corrosion resistance and low maintenance are required. What to check before ordering Choose the guide length that matches your required travel (available lengths listed). Confirm your motor/shaft uses a 5–8 coupling or an adapter compatible with that range. Ensure the 8 mm lead and 2 mm pitch meet the motion resolution and speed requirements of your application. Includes standard T8 double guide rail set with specified materials and sizes as listed.