[quote=JeffA]
About those clevis pins that come with those openers.
Remove them and replace them with a bolt and nyloc nut.
Gotta leave them a little loose so they can pivot.

The nyloc nut makes it to where a guy has to have two tools to remove it. Just a simple little step to help deter a thief or trespasser.
/quote]

I've replaced our gate clevis pins with a pad lock and before that I went with a nyloc nut on an allen headed bolt.