DIN127 Washer

Definition:

A washer is a disc with a hole in the middle, usually made of metal or copper, that is placed above or below the bolt or nut. Washers are used for a variety of purposes, but the most common uses are:

• Reducing friction: Washers help reduce friction between the surface of the bolt or nut and the part to be connected. This helps prevent the bolt or nut from coming loose.
• Distributing the connection: The washers help distribute the load of the connection over a larger area. This helps make the connection more solid and durable.
• Insulate: Washers can help reduce the electrical conductivity of the bolt or nut. This is used to connect parts that need to be electrically isolated.
• Ensuring safety: Washers can be used to prevent the bolt or nut from turning or slipping. This is used in security-critical applications.

Washers come in a variety of shapes and sizes. The most common types of washers are:

• Round washer: The most common type of washer. It has a round hole.
• Hexagonal washer: Has a hexagonal hole.
• Flat washer: Has a flat hole.
• Spring washer: A washer that expands like a spring when tightened.
• Safety washer: A washer designed to prevent a bolt or nut from turning or slipping.