The standard VESA (Video Electronics Standards Association) is a standard that regulates the type of fastening enen the monitor, which is by screws 12-16 mm., Forming a square, which is divided into 3 groups. MIS-D 75x75 mm. or 100x100 mm. - These are the measures most commonly used in monitors, depending on their size, with a maximum weight of 14 kg MIS-E, 200 x 100 mm.. used in TVs up to 23.7 kg. MIS-F, 200 x 200 mm. or 300 x 300 mm. - Used in TVs with a maximum weight of 113.6 kg There are some sizes, and in increments of 200 x 200 mm.. for large screens.

Depending on the need for installation and type of base, trolley or chair, we can find various types of fixation. Among the most common we find:

A - Through hole: It has a hole in which a screw or stem is inserted. It is a very simple installation system. Ideal for wheels that should not support a lot of load.
B - Threaded stem: It has a threaded stem or nut, it is fixed to the surface with a nut. It is usually the most used fastening system.
C - Angular plate: They are usually less used fastening systems, they have lateral plates to fix on the base.
D - Plate: It has a rectangular or square plate on its surface, it includes 4 or more fastening holes to the base, it is one of the most common.
E - Smooth stem: The stem without thread is inserted into the female of the base, we can find it in the typical office chairs with wheels, TV furniture etc ...