Bi Directional 20Mm Lead Screw Kit For 3D Printers, 400Mm Length With Brass Nuts, Acme Thread, 4Mm Pitch, Single Start, Right And Left Hand, 190Mm Each Side, Durable And Easy Install

Bi-Directional 20mm Lead Screw Kit for 3D Printers
✔️ 400mm total length with 190mm per side, includes 2 brass nuts

This bi-directional 20mm lead screw kit uses a 304 stainless steel rod with a 4mm lead and an ACME thread, designed for precise axial motion in 3D printers. It is ideal for upgrading Z-axis or dual-drive axes on Cartesian and delta machines, providing clean alignment and straightforward installation.

✅ Lead screw diameter: 20mm
✅ Lead / Pitch: 4mm
✅ Total length: 400mm (15.75 in); 190mm per side
✅ Material: 304 stainless steel rod with 4-holed T20 brass nuts
✅ Includes: 1 right-hand and 1 left-hand screw; 2 brass nuts
✅ No end machining required; pre-machined ends for easy install
✅ Bi-directional operation keeps two nuts moving in sync to reduce error

💡 What is a lead screw kit used for in 3D printers?

This handy setup provides precise linear motion for printer axes. - Handy for precise Z-axis and bed movement alignment - Improves motor synchronization when using dual drive screws - Uses corrosion-resistant stainless steel and brass nuts for longevity - Easy upgrade with minimal hardware changes