Two Pack 400mm Long 8mm Diameter T8 Lead Screw With Brass Nut For 3D Printer Z Axis 304 Stainless Steel Threaded Rod 2mm Pitch Mounting Holes For Precision CNC And DIY Printer Upgrades

Two-Pack 400mm Long 8mm Lead Screws with Brass Nut
✔️ 2x 400mm long, 8mm dia, 2mm pitch, 304 SS leadscrews, brass nut

These precision lead screws are designed for Z-axis and linear motion on 3D printers and CNC machines. They provide smooth, reliable movement and are ideal for DIY printer upgrades and compact CNC builds that require compact, high-precision travel. The 400mm length suits mid-sized machines, with mounting holes on the brass nut for easy installation.

✅ Length: 400 mm
✅ Diameter: 8 mm
✅ Pitch: 2 mm (lead 2 mm)
✅ Material: 304 stainless steel; nut: T8 brass with 4 mounting holes
✅ Nut compatibility: standard T8 screw thread compatibility
✅ Pack size: 2 pieces (2x screws + 2x brass nuts)

💡 What is a lead screw used for in CNC machines and 3D printers?

Here's a handy overview that applies to many hobby setups.

• Converts rotary motion into precise linear travel for accurate positioning.
• Low backlash when paired with the right nut and proper lubrication.
• Commonly used on Z axes and other axes for repeatable, smooth moves.
• Made from stainless steel with brass nuts for durability in DIY projects.