I would never attempt to hang 30 pounds on nothing but a single point on a single sheet of drywall.
I would take a slightly different approach:Hi everyone, I’m about to hang my surround speakers (Polk LSIM 702f/x). They weigh about 29lbs each, I was thinking of using the Toggler Snaptoggler. But the problem with this anchor and 90% of the other anchors is they are designed the the bolt to be tightened down all the way. But I need to leave it sticking out about a 1/4 inch or so to engage with the key holes. What’s your thoughts.
If I had to find a stud for everything I hang on a wall then nothing would be where I wanted it nearly impossible with speaker placement besides being unnecessary.You're assuming nobody will accidentally hit the speakers. Find studs.
One word: studs. Actually several more: Texas, Concrete slab, 1st floor room, 2 story house.
You do surgery behind the baseboards run everything around the perimeter and come up in the the stud bays. Patch and replace baseboards, taller ones if needed.One word: studs. Actually several more: Texas, Concrete slab, 1st floor room, 2 story house.
To much work for a 78 year old. I don't use my HT as a showplace. Function over esthetics, the screen and the projected image are the focus.You do surgery behind the baseboards run everything around the perimeter and come up in the the stud bays. Patch and replace baseboards, taller ones if needed.
They have two key holes on the back, spaced about 12 inches apartI would never attempt to hang 30 pounds on nothing but a single point on a single sheet of drywall.
I’d try not to overthink it. Molly bolts or toggle bolts or one of the fancy versions of those things that people have mentioned in this thread. Something that puts pressure on the front and back of the drywall making it near impossible to pull out. I’d feel safe with any of those in spots where studs can’t be used, and I’d hang the speaker from it directly.I was thinking of using some 1/2 MDF (painted black) cut slightly smaller than the dimensions of the back of the speaker. Than I would use four anchors to hold it to the drywall (hoping two of the screws can hit a stud), then two screws to hold the speaker to the board.
I didn't even think of using a nut, thumbs up.OP , if you get a nut the right thread pitch for the anchors you use that to snug the anchor to the wall . Adjust the head to where you need it for the keyholes , then snug the nut to the wall . I personally wouldn't mount that much weight on only drywall , but I've done that for light weight surrounds that had keyholes . My rule of thumb is if I think the item will break when it falls on my head , then it gets mounted on wood thats mounted on studs or I cut the wall and add blocking .