Favorite inclined plane, the helix imparted to screw threads. IF those are like air propelled twisted glue coated nails we're familiar with, so resistant to pulling with a claw hammer, I'm impressed. Think I'd have utilized ratio of a differential thread though. Like it none the less.

A pair of girls stops by for pallets as I unload, they repurpose the material for crafts. Always a giggle fest as they break one down, mild cursing when a board splits. This might serve them well.