Openbuilds M5 Flat T Nut for 20mm Aluminium Profile Tee nuts is an integral part of any for openbuild, adds flexibility and extends tuning; Easy to install to make the system more solid; fast and secure the connection along the length of the V-groove or c-beam linear guide; It has customized angular angle for smooth sliding. Install with M5 or 4mm fixing screws. Compatible with 10mm size slots. The M3/M4/M5 Tee Nuts are designed and custom-made with angled corners to allow for a smooth transition when sliding into V-Slot Linear Rail. You can use these Tee Nuts just like you would a Double Tee Nut to make any connection that you need anywhere along the length of the V-Slot Linear rail track. These Tee Nuts are reversible. You can flip them upside down if you need more threading. Check out the entire range of Other Mechanical Accessories Applications: 3D Printer CNC router Robotics projects aluminum profile system DIY projects frame Aluminum alloy frame structures