Screw supports or adjustable screw supports are a type of hardware that is attached to the legs of furniture and various metal structures to compensate for uneven floors, as well as to adjust the height and angle of inclination of the structure.

These supports are used to: adjust the height of furniture and other structures, adjust the height of the entire structure or the height of individual parts, adjust the angle of inclination, level the structure, i.e. compensate for unevenness of the floor. The larger diameter of the support base makes the structure more stable. The plastic base prevents deformation of the floor covering material.