Steve I think you've inspired a trip to the hardware store. Some stainless hex bolts and nylocks should deter most casual thiefs.
When I got home I walked up and down the road and found one of my bolts up the hill leading to where all the teen druggies live.
I can't wait till one of them gets pulled over for stolen plates on their 150 cc scooters.
Buying some sort of locking mechanism for my shed too. They already cleaned me out of my tools over the winter.
Still need to replace the valve spring compressor, compression tester, a few more sockets, and my Phillips screwdrivers.