Impact light stand owners, quick Q

Atop my new Impact stands is a small thread that is the wrong size for my umbrella heads. This thread is on a knurled steel knob that looks like it might unscrew and give access to a larger threaded rod underneath, but I dont want to start twisting it unless I'm sure thats what it is.

So is there one under there or was I too stupid to not get all the parts I need?

Umbrella/swivel bracket is where an umbrella mounts. The knob on your stand is available as a method for putting a light directly on the stand, like an Alienbees strobe.

http://www.bhphotovide​o.com …ge.jsp&A=search​&Q=*&bhs=t

Nevermind, I figured it out and removed the part from the head =)

Yeah, thanks Form thats what I did!