M3 Spring T-nut with Ball for Aluminum Extrusion (10-Pack)

Easily modify and upgrade your custom builds with the M3 Spring T-nut with Ball (10-Pack). Designed for standard aluminum extrusions, these convenient roll-in nuts feature a spring-loaded ball bearing that holds them securely in place—even vertically. Drop M3 hardware anywhere along the slot without disassembling your CNC or 3D printer frame, making maintenance, upgrades, and full machine builds effortless.