Mechanical Fasteners

noun a small flat piece of metal or other material, typically square or hexagonal, with a hole through it for a bolt or screw to be passed through

• The nut of the tree is a valuable source of nutrition for many animals.
• I love snacking on nuts throughout the day.
• He's a bit of a nut when it comes to collecting vintage cars.
• She cracked under pressure like a nut in a vise.

noun a small disk or wheel-like object, especially a decorative disk used in jewelry or as a component in a mechanical device

• The chef carefully placed a rondelle of cucumber on top of the salad.
• Can you pass me a rondelle of cheese for my sandwich?
• I love snacking on rondelles of pepperoni while watching TV.
• Each rondelle of carrot represents a different aspect of our project.