Adjustable mounting is made to clamp various sizes of same family of electrical components to reduce inventory and avoids multiple design. Electrical cost components for the Line Replaceable Unit (LRU) often comes with the default mounting provisions, but in some cases the components will not come with the mounting provisions. Most of the components comes with rectangular cuboid shape with different envelop dimensions that demands new design bracket design for different dimension components. One universal adjustable size bracket design solves this problem.