QSC SP-26 
26 in (660 mm) long, 35 mm diameter, loudspeaker pole with male M20 thread.
 
The QSC SP-26 M20 Threaded Speaker Pole gives you a quality pole for mounting a K series loudspeaker over a Ksub. This sturdy pole is 26 inches long and has a standard M20 thread. The QSC K series/Ksub speaker combination is a favorite of Sweetwater live sound engineers, and the SP-26 M20 Threaded Speaker Pole is their go-to mounting solution.