Question about mounting shock mount

Dumb question but, just purchased a shock mount (Pearstone DUSM 1). My dilemma is the shock mount has a hot shoe mount/ 3/8 thread mount. Now my question is how would i attach this to either A my blackmagic or B, my rig. I Have a Gini Rig, and would like to put it on top of one of the threads (picture attached), if not i have no problem putting it on top if the blackmagic with the right adapter...
http://www.bhphotovideo.com/c/product/5 ... t_for.html
http://www.bhphotovideo.com/c/product/5 ... t_for.html