I used these two lamps to hold 2 circuits to light up my pool table. When I found a stud in my vaulted ceiling, I used Simpsons hex head screws to attach it. I wanted a structural screw to hold the lamp. It was too tight on the sliding hook. I had to grind the hex head a little over 1/16" to fit the hook in the saddle. The hooks appear to be well built and strong.
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