A:Answer As I recall, there were NUMEROUS screws which came with this mount. My recommendation would be to test several different sizes BY HAND (do not use a screwdriver) to see which screws fit the threads correctly. If the screws seems to be too tight to turn them by hand, they're probably too large, and you should try a slightly smaller size. If you try to force a screw that's too large, you could strip the threads in the soundbar.
Honestly, I ended up returning mine, as there was just too much hardware for the space I needed to span. Check out my full review if you're interested.