This set includes 10 M4 T-nuts, specifically designed for securely fastening components into aluminium frames, such as the popular 2020 profiles. These nuts are made from high-quality material and offer excellent grip, making them a reliable and durable choice for various construction and assembly tasks. They are easy to install: simply slide them into the T-slot of the aluminium profile and tighten. Ideal for both professionals and DIY enthusiasts.