Metal Flat Washers DIN 9021 With Plain colour&Zinc colour&Yellow

Flat washers are usually thin pieces of various shapes, used to reduce friction, to prevent leakage, isolation, to prevent loose or dispersed pressure. Many materials and structures have such components, for the implementation of various similar effects. The material and process of the fastened fastener are limited, and the fasteners of the bolts are not supported. Therefore, the surface of the connected member is protected by the compressive stress of the pressure receiving surface. In order to prevent loosening of the connection loops, the use of anti-loose spring washers and multi-toothed locking washers, round nut stop washers and saddles, corrugations and conical elastic washers.
Flat washers are mainly used to reduce the pressure, when some parts tighten the axial force is very large, easy to make the gasket into a dish, then you can use the material and improve the hardness to solve.
Spring washer locking effect in general, important parts as little or no use, and the use of self-locking structure. For high-speed tightening (pneumatic or electric) spring washers, it is best to use surface treatment of the gasket, to improve its wear performance, or easy to friction and heat burned or mouth, or even damage the surface of the connector. For sheet connections, spring washers should not be used. According to statistics, the spring washer in the car to use less and less.
The toothed in the toothed elastic washer is large and uniform due to the locking force, and is used more in the automotive industry, while the spacer is less.
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