Abstract: A liner assembly for the discharge end of an ore comminuting mill is disclosed. The discharge end is defined by an end wall having a plurality of bolt holes formed therethrough in a predetermined pattern for attaching the liner segments to the inner surface of the end wall. Each liner segment is formed with a plurality of bolt holes capable of being aligned with the bolt holes in the end wall. A locator pin projecting from the mounting surface of the liner segment is sized and configured to project into one of the end wall bolt holes, and it is positioned relative to the bolt holes in the liner segment so that upon such insertion the bolt holes of the liner segment automatically align with those of the end wall.