One of my Shimano PD-M520 pedals worked the bolt used as a hinge loose while riding on Wednesday. I was able to find the bolt, cleat, and springs on the trail, but the screw and nut that allow you to set the release force are long gone, leaving one side unusable.
I know these pedals aren't expensive, but I'd hate to toss a good pair that could be easily fixed. Let me know if you have a worn out or broken pair laying around that I could cannibalize.
On a related note, if anyone found a tiny little screw with clip still attached to it at Yudicky (probably on Fireball) in the last couple days, that's mine.