M3 Roll-In T-Slot Nut with Ball Spring, Nickel Finish
✔️ Nickel-plated carbon steel, 50-pack for 2020 extrusion

Roll-in T-nuts with ball springs are designed to slide into 2020-series aluminum extrusion rails and lock securely using a ball detent. These M3 nuts are ideal for quick, modular assemblies in 3D printers, CNC machines, and robotics projects.

✅ M3 size
✅ Nickel-plated carbon steel
✅ Roll-in ball-spring design for secure grip
✅ Compatible with 2020-series extrusion
✅ Pack of 50, pro-grade build

💡 What is a roll-in T-nut with ball spring used for in 2020-series extrusion?

These handy fasteners let you mount and reconfigure components quickly on 2020-series aluminum frames.

- Mount brackets, motors, sensors on 2020-series rails - Securely hold accessories with a simple push-in and ball-detent lock - Great for DIY projects, 3D printers, CNCs, and robotics builds - Durable nickel-plated carbon steel for long life