What are the different parts of a Strut Assembly/Coilover?

I am going to be putting together the Strut Assembly for my truck with new shocks, springs, and strut mounts, and I want to make sure that when I go to do this I have all the necessary parts and am not forgetting anything. I'll be taking it all to a shop to have it assembled and want to be sure I don't miss anything that would cause me to have to wait any longer with putting all this new stuff on. Currently, I have the shocks, new coils, and new strut mounts along with the nuts and such to put it all together. Am I missing anything?