M3 T Slot Nut for 2020 Aluminum Extrusion – Drop-In or Roll-In | V-Slot / T-Slot Rail Nut for 3D Printers, CNC, and DIY Frames

Description ✅ Fits 2020 aluminum profiles (6mm slot width)✅ Standard M3 thread – compatible with M3 screws✅ Drop-in or spring-loaded roll-in options✅ Made from durable steel or anodized aluminum✅ Ideal for brackets, mounts, sensors, enclosures & more