A load button is a physical feature of a compression load cell. It is a domed-shaped loading point that is welded or threaded onto the side of the load cell that has been designated to receive the applied load.

Load buttons are used to measure compression loading correctly by eliminating the potential for side loading. A load button is rounded so that the load being measured always rests on the highest point of the button. A load button ensures that the entire applied load issues a force in a direction that is perpendicular to the load cell.