What is the function of the washers？

What is the function of the washers？

1. To make the force under the nut or bolt head even.

2. It can be used to adjust the distance between the thread and the surface of the component.

3. It has the functions of locking, anti-loosening, protection and pre-tightening instructions. 

What Is a Spring washers?

Spring washers also called split lock washers, provide a vibration resistant function, they consist of ring split at one point and bent into a helical shape, this causes the washer to exert a spring force between the fastener's head and the bearing face which maintains the washer hard against the face and the bolt .

What is a Flat Washers?

Flat washers protect surfaces by evenly distributing torque when a bolt or screw is tightened. They prevent corrosion between a steel screw and an aluminum surface. A nylon washer can be placed under a machine screw to reduce noise and abrasion and offer electrical insulation.

What is an Aluminium washer?

Washers made from aluminum or aluminum alloy provide a much lighter material and are more corrosion resistant than plain carbon steel washers.

How does a copper washer seal?

Even flat copper washers will deform during tightening to create a seal. They're made from annealed copper, which is very soft. The raised ridge just reduces the load required to initiate the seal.