Includes 20 T-type nuts in sizes M3, M4, M5, M6, M8 and M10 for versatile fastening in aluminium profiles. T-type design provides a square nut that slides in T-slots and rails, enabling quick, adjustable fastening and repeatable positioning. Compatible with aluminium profiles such as 2020, 3030, 4040, and 45, delivering secure connections in modular frames and assemblies. Suitable for applications requiring a secure and adjustable fastening, easy installation and reliable alignment. Pack of 20; the size designation 30 M4 indicates a specific combination within the set. Use scenarios - Mounting brackets, panels or accessories to modular frames made from 2020 or 3030 profiles in machine guards or enclosures. - Adjustable positioning of components along 4040 or 45 profiles for supports, bases, or fixtures in automation or conveyance setups. - Quick assembly/disassembly of modular fixtures in prototyping, testing, or temporary workstation configurations.