You could use something like this if it's long enough, just turn it upside down so the bracing isn't in the way of the fixture. You don't need super strength - the fixture weighs less than 30 lbs.
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Originally Posted by Galizio
Not really, they use steel plate in wood building, on a condo where they use steel studs more likely they just use some plastic rings to make sure the pipes don't touch the steel studs holes, steel plate only get use if the pipes are really really close to the studs, most likely they take in consideration that drywall screw are 1-1/4 ", and believe me , I saw some were steel plate was not used or stuff like that, honestly is a big risk to take, if u flood 10 floor under you....
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Yes, you're right about the steel studs, but if they used steel studs, then the lines will be in the middle of the stud (where the holes are to run them) in which case they don't need to have the plates because the distance is great enough. The knockout in the steel stud will be in the middle of it, plus the thickness of the drywall means if you use 1" screws you won't hit anything. There is no need to use long screws with steel studs - just enough to go through the drywall and the thin wall of the stud. Usually in ceilings the wiring and pipes will be above the studs anyway. They only have to use the steel plates on wood framing or to protect high voltage lines.
The easiest way to check is to look in the access opening if there is one. There usually is an access in each unit. You can look in there and see the general style they used.