Hanging 170# Display on Sheetrock

[olds]

5/8 sheetrock on 12 gauge metal studs.
70" display that weighs 170 pounds
Mount is approximately 4' wide and 12" deep.

I assume the studs are worthless as far as mounting to them.

So I could get at least 5 toggle bolts in the two rows that take the fasteners. I saw a study where 3/4" toggle bolts were rated for 300# of shear strength.

Or, I could go with a piece of 1/8"steel or .5" plywood toggled to the wall that is just a tad smaller than the display and toggle the mount through that.

Any other ideas?

Things I will not do:
Buy a lighter display
Tear down the wall and rebuild it
Eat a bag of di...

 

[Humpy]

If they are really 12 gauge studs they will hold a lot of weight.

Unistrut is 12 gauge.

 

[Mr.IncrediblyBored]

If you want something clean looking and were willing to cut the drywall, you could put wood blocking between the metal studs.

 

[herm0016]

use toggles through the metal studs. you can use a step bit instead of a twist drill to make drilling easier. This will be the strongest option.

 

[Carson Dyle]

Snaptoggles. If you can mount any of them through a metal stud, all the better, but if not, five of them will be more than adequate. Shear strength is not what you're concerned about.

(*Edit* Now that I think about it, it would probably be damned hard to drill a 1/2" hole through a metal stud in a wall. I'm not sure I'd even try it, and think you'd most likely just make a big mess.)

http://www.toggler.com/products/snaptoggle/overview.php

Tested below at the 2:00 mark. Four of them held 284 pounds in 1/2" drywall. You be using five and will be mounting them in 5/8" drywall.

 

[Humpy]

Looking at the Hilti fastener chart, one #10 self drilling screw in a 12 gauge stud has a pullout strength of 765 lbs, pullover of 1370 lbs, and shear of 1645 lbs.

Probably use two screws just to be safe.

 

[olds]

Thanks guys. The studs are stronger than I anticipated.
I'll go through the studs and use hollow wall toggles.