A gas turbine engine comprising: a compressor section including, a plurality of compressor case segments that are in a stacked arrangement along an axis, the compressor case segments having respective axial dimensions (D1, D2, D3) which are variable within respective dimensional tolerances (T1, T2, T3), the stacked arrangement having a stacked dimension which is variable within a stacking tolerance corresponding to the dimensional tolerances (T1, T2, T3); and a joint including, a first component having a first ring portion and a first annular radial flange extending from the first ring portion, the first component being adjacent the stacked compressor case segments, a second component having a second ring portion and a second annular radial flange extending from the second ring portion, the second component being affixed such that the first annular radial flange and the second annular radial flange are spaced apart by a gap having a variable gap size that is subject to the stacking tolerance, an annular shim disk disposed in the gap, and a plurality of fasteners, each of the fasteners being secured through the first annular radial flange, the annular shim disk, and the second annular radial flange, wherein the compressor section includes a low pressure compressor and a high pressure compressor, characterized in that: the joint is located in the high pressure compressor, wherein the joint is at an aft end of the high pressure compressor, and the annular shim disk has radially inner and outer edges, and uniform axial thickness (f) from the radially outer edge to the radially inner edge. a compressor section including, a plurality of compressor case segments that are in a stacked arrangement along an axis, the compressor case segments having respective axial dimensions (D1, D2, D3) which are variable within respective dimensional tolerances (T1, T2, T3), the stacked arrangement having a stacked dimension which is variable within a stacking tolerance corresponding to the dimensional tolerances (T1, T2, T3); and a joint including, a first component having a first ring portion and a first annular radial flange extending from the first ring portion, the first component being adjacent the stacked compressor case segments, a second component having a second ring portion and a second annular radial flange extending from the second ring portion, the second component being affixed such that the first annular radial flange and the second annular radial flange are spaced apart by a gap having a variable gap size that is subject to the stacking tolerance, an annular shim disk disposed in the gap, and a plurality of fasteners, each of the fasteners being secured through the first annular radial flange, the annular shim disk, and the second annular radial flange, a plurality of compressor case segments that are in a stacked arrangement along an axis, the compressor case segments having respective axial dimensions (D1, D2, D3) which are variable within respective dimensional tolerances (T1, T2, T3), the stacked arrangement having a stacked dimension which is variable within a stacking tolerance corresponding to the dimensional tolerances (T1, T2, T3); and a joint including, a first component having a first ring portion and a first annular radial flange extending from the first ring portion, the first component being adjacent the stacked compressor case segments, a second component having a second ring portion and a second annular radial flange extending from the second ring portion, the second component being affixed such that the first annular radial flange and the second annular radial flange are spaced apart by a gap having a variable gap size that is subject to the stacking tolerance, an annular shim disk disposed in the gap, and a plurality of fasteners, each of the fasteners being secured through the first annular radial flange, the annular shim disk, and the second annular radial flange, a first component having a first ring portion and a first annular radial flange extending from the first ring portion, the first component being adjacent the stacked compressor case segments, a second component having a second ring portion and a second annular radial flange extending from the second ring portion, the second component being affixed such that the first annular radial flange and the second annular radial flange are spaced apart by a gap having a variable gap size that is subject to the stacking tolerance, an annular shim disk disposed in the gap, and a plurality of fasteners, each of the fasteners being secured through the first annular radial flange, the annular shim disk, and the second annular radial flange, wherein the compressor section includes a low pressure compressor and a high pressure compressor, characterized in that: the joint is located in the high pressure compressor, wherein the joint is at an aft end of the high pressure compressor, and the annular shim disk has radially inner and outer edges, and uniform axial thickness (f) from the radially outer edge to the radially inner edge. the joint is located in the high pressure compressor, wherein the joint is at an aft end of the high pressure compressor, and the annular shim disk has radially inner and outer edges, and uniform axial thickness (f) from the radially outer edge to the radially inner edge.