Available in 10/20/50/100 piece quantities. This set includes nuts for EU aluminium extrusion: M3, M4, M5, M6, M8, TNut, and Hammer Drop in Sliding Nut Attachments. Compatibility Suitable for EU Aluminium Extrusion Series 15/20/30/40/45. Size and contents M5 size included with 20 pieces. The set also contains nuts of other types (M3, M4, M6, M8) and TNut variants. What this offers - Versatile fastening options for a range of extrusion profiles - Quick and reliable mounting using sliding nut attachments - Broad compatibility with common European extrusion series - Ready-to-use mix of sizes minimizes measurement and searching time during assembly Nuts included M3, M4, M5, M6, M8, TNut, and Hammer Drop-in Sliding Nut Attachments Use scenarios - Build or modify a modular machine frame by attaching brackets and crossmembers along 15/20/30/40/45 series extrusions - Create an adjustable workbench, enclosure, or guard system with easily repositionable fixtures - Install sensors, tool holders, or accessory mounts along a production line or automation setup for flexible reconfiguration