Handles are all designed to transmit a force between a person’s hand and an object. Handles are used to move an object or workpiece by hand. They are designed with a focus on ergonomics. Since they require manual hand-based operation as opposed to automated tool-based operation.

Hinges are a hardware component that connects two items together. It bears the weight from one to the other about a fixed axis of rotation allowing it to open and close easily.

A shaft collar, sometimes known as a locking collar or shaft clamp, is a ring-shaped plastic component which fits onto a shaft. It is mounted to the shaft using either clamping forces or a set screw, with the mounting mechanism depending on the type of shaft collar.