mordaunt short ms402 speakers and ms400p stands

Hi I currently have 4 mordaunt short ms402 speakers and 4 ms400p speaker stands. I currently require 1 speaker terminal its a female screw type about 8mm does anybody know where I could require such an item. I also require a speaker mount for one of the stands that the speaker screws into that's about a 10-12mm female type one end and bare the other end. I have uploaded a few pictures of the fixings I require.