A square nut with dimensions of 13x13x5mm with M6 thread is a mounting element intended for fixing various elements and to aluminum profiles. Used for the construction of 3D printers, CNC milling machines, robotics projects, machine guards, workstations, etc. Technical data Dimensions: 13x13mm Height: 5mm Thread: M6 https://elecena.pl/product/22621636/10-pcs-m6-13x13mm-square-nut-groove-for-aluminum-profiles 2023-02-23 https://elecena.pl/product/22621636/10-pcs-m6-13x13mm-square-nut-groove-for-aluminum-profiles 2025-10-29