The 3/8-16 x 1 1/2" Set Screw is used on the Alexx, Alexia Series 1, Maxx Series 1-3, Center 1-3, Mezzo, Polaris, Sasha 1-2, Sophia 1-3, Watchdog, Watt/Puppy 1-8, Witt 1-2, X-1 Grand Slamm 1-5, X-2, XLF, and Yvette Products. Set screws are sold individually. One speaker requires 4 set screws. Two speakers will require 8 set screws.
