There is a lot riding on that little strap post at the end of your guitar. In my case it serves double-duty by holding the strap and a TriplePlay MIDI pickup bracket. Over-tightening this screw can lead to trouble. Once the wood inside the guitar is stripped, the screw will just spin in place and never truly tighten – unless you know the toothpick trick.
Jamie, a repair tech at Guitar Center, showed me this quick fix for strap post security. He removed the screw and dropped a short piece of toothpick into the hole. This gives the screw new wood into which it can bite. The previously free-rotating screw now stays in place firmly with a rock solid hold on the TriplePlay bracket.