Sleeves and Nuts

Sleeves are round parts that go between other parts. They reduce friction, protect surfaces, and keep parts in line. They can also work as spacers or insulators.

Nuts are fasteners with a hex or other shaped hole that fits a bolt or screw to hold parts together. They come in many types like standard hex, lock, or wing nuts.

People use sleeves and nuts to build and keep machines, cars, and other systems working well.