It's not common and I wouldn't keep that method in your bag of tricks. There's always a better way. Like john said, for a single required support of minimal weight...maybeElectrical Student said:Yea, it was just a 2 inch sprinkler.(2 inch I think) I am talking about using it for one side of strut to hang a varity of emt. I dont think I would use it without at least checking with a forman but sometimes theirs not many options available and wanted to see if its a common method.