I dealt with it by using a jack to help me align the top hat against the FUCA mount and using a thin 13mm socket from Ko-ken (2300MZ-13). My new front damper assemblies came with pretty crooked top hats because the springs were not flat on the top, so I had to use substantial force from the jack to help mate the top hat against the FUCA mount. The jack pushes the bottom of the damper assembly towards the FUCA mount. The studs have to be almost perfectly coaxial with the holes for the socket to be able to spin the nuts onto the studs. Without a jack there's no way to defeat the spring force that is causing the top hat to be misaligned with the FUCA mount. However, the axial alignment continues to improve as tighten whichever of the nuts you can tighten at the start, because the nuts are pulling the top hat up, incrementally overcoming the spring and making the top hat flat against the FUCA mount.