cable mount (Q41052)

I'm going to run a ghetto power drop into my 'workshop' from a dedicated 15Amp outlet elsewhere in the house. I've got a heavy-duty extension cord I'm going to route through the attic, but where it dangles down from the ceiling I'd like it to look as neat as possible. To keep things organized I blended up this cable clip. I thickened the connection in the 90 degree bend for strength. The mounting holes are designed for standard drywall screws and are counter-sunk.