“It looks like a part for something.”
“A part for something.”
“What use is tiny box? Wolfgang would like to know.”
“Looks a little screwy.”
“SPEAK TO ME, MACHINE”
“There must be a use for this, eh?”
“Another piece of the puzzle.”
“It is part öf sömething.”
“Someone's got a screw loose.”
“This thing attaches to the other thing?”
“"This" likely connects to a "that."”
“Thar be secrets hidden in this here box.”
The Screw Thing is one of the Things in the Shipwrecked DLC. It can be used on the Wooden Platform Thing to create a portal to another Shipwrecked world.
It spawns naturally in the world in its own Set Piece. The Screw Thing is surrounded by some Limestone Walls as well as Grass Tufts and a Fishing Rod lies next to it. There may also be a Wildbore House in the set piece.
Wendy finding the Screw thing.