Nut, M6, t-slot, drop-in, hammer nut, for 30x30 extrusion | 3D CAD Model Library | GrabCAD
T-Slot Nut, Hammer Head Fastener Simple and Reliable Nuts and Bolts Set for European Standard Aluminum Extrusion Profiles(European Standard 30 Type-M4*15.5 * 8): Amazon.com: Industrial & Scientific