Here is another idea, something I did for another project but it might give you another idea. I took one of those hanger bolts (half screw, half bolt I think it might have been #8), drilled the "frame", marked the holes on the wall, drill a starter hole and screwed the wood screw part in to the wall. Put the "frame" up and used some fancy drawer pulls I picked up at on sale at the hardware store..... I only had two left, and I only needed two so this worked out nicely. The wife likes to hang necklaces or whatever on the pulls.... or maybe if you get bigger pulls you could hang ear protection and safety glasses, or neck ties????? The pulls I had had a threaded insert and that determined the fastener size but I recall having problems finding the right length in that small dia. Oh well just another idea.