Allen screw with a diameter of 5mm and a length of 10mm. It features a head with an internal hexagonal design and tightens or loosens with a hex key or Allen key. It has the advantage of offering very good grip when used with the corresponding hex key or Allen key. It can also be used more easily in hard-to-reach places. It is ideal for use in outdoor areas or in humid environments, as it is made of stainless steel.