Acorn International SSA-STDMSTR Screw, 8 Piece

I'm not sure what situation this was specifically designed for but the threads extend just as much as the head so if the hole in the object you are attempting to mount is big enough for the threads to fit through, it is also big enough for the head to fit through. Also, a Phillips head seems like a poor choice as it strips easily.Update: I tried a large Phillips bit and an impact driver and had no problems with stripping the head. I was trying to mount a steel bracket to a steel stud with drywall between the two. The hole in the bracket is about .5" and I drilled the stud with about a .25" bit. You can see in the picture where the threads deformed at both the stud and bracket. Maybe this product can attach wood to metal studs?

I spent the time drilling into my 1960's circa thick gauge commercial buildout steel stud and then went to drill this bad boy in. Well got about 2 turns and that was the end of the line before the Phillips driver with a LOT of pressure still started the slip. These might work in aluminum , but I don't know. Maybe they'd work in wood studs. but the angle thickness of this screw goes from zero at point to about 1/4" at thickness in the distance length of about 2 inches.

These work OK, there are better anchors in my opinion. If you are looking for something easy to use with a quick install then this is it.

It was suppose to go right into a steel stud without issue. It was almost impossible to use; even with drilling the pilot hole as described, the screw would not go into the stud; it would just spin. I tried it 10 times. Only 2 worked.

Used twice 85 pound mirror and a closet no issues with the metal studs

as stated

It is holding well so far. I had to open a little the TV support holes as it was a little larger than they but it was an easy and quick task. But, be sure to find the center of the stud or it can tear its side and lose grip. Also, after you find the stud's center begin drilling with a thin drill and then go to a 1/8" and then use the anchor. I made one step further that was to open the hole in the drywall only to 1/4 before attaching the anchor to avoid damaging the drywall too much and it worked fine. Also, after I find the studs center I taped the drywall around where I would drill to protect it.Worked fine for my 55in TV so far.

I followed the instructions and drilled a 1/4" hole in the center of the steel stud. I then drove the anchor in and it stopped going into the stud after a couple turns. I pulled the anchor out and noticed that the threads were bent so I tried another and the results were the same. I grabbed some self drilling screws just to be sure I was dealing with regular studs and they went right in. I don't know where these anchors will actually be useful.