Characteristics
Overview
A heavy brass door knocker
Twenty metal fragments buys your front door a face. The knocker hangs on the outside of a door, a wooden door or a sheet metal door alike, and gives anyone standing there something to use: they knock, and the people inside hear it.
That is the whole job, and the game's own text promises even less. It only calls the thing heavy brass. No protection, no lock, nothing a raider has to deal with. Picture a neighbour outside with a stack of scrap for a trade: the knock tells you someone is there, and a look through the window tells you who.
The skull door knocker costs the same and, by its own description, throws flames when someone disturbs it. The dragon is the calmer pick. It looks like a seasonal item, so do not count on finding it in the crafting menu all year.
Recycling
At power grid stage 2 a green recycler works at 60% instead of 50%. Yields depend on the recycler.