Bolt and nut
part · 1400 · Middle Ages
A threaded fastening.
What it is made of
- Screw thread — has part. A bolt and a nut are joined by a thread.
Principles and materials it uses
- Iron — is made of. Bolts and nuts are iron.
Where it is used
- Wrench — is used in. A wrench turns nuts.
- Metal construction set — is part of. Screws and nuts.