Who or what is it? A puzzle from the category Inventions

Five clues, from vague to obvious. The sooner you get it, the more points you score.

The clues

1. An inventor from the Black Forest patented it in 1958.
2. The inventor was Artur Fischer.
3. It is usually made of plastic.
4. You push it into a drilled hole.
5. It holds a screw firmly in the wall.

Guess it yourself

Show the answer

The wall plug

More puzzles

Footballers: He played in midfield.Games: It is a puzzle game.Games: It comes from Japan and started in 1996.Games: It is a mobile game from 2012.Countries: It lies in North Africa.

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