DIN and standard parts
Lock washers effectively prevent the screw connection from working loose.
The ribs on the upper and/or lower side of the washer dig into the screw and the clamping part and efficiently prevent the screw from working loose. Curved washers are highly flexible and reduce the loss of pre-tensioning force from settling phenomena.
Depending on the requirements and design, washers with a locking function can be used to lock/set screw connections and preventing loosening or loss of the connection.
They are available in the hardest steel grades, as well as in stainless steel. Soft materials such as brass or aluminium are unsuitable for washers with a locking function.
Our products can be coated with different surface finishes, depending on requirements and application. We will be pleased to give you individual advice on the right coating system.
We offer the following surfaces as standard:
Screw connections must be properly secured for the intended use. The correct mechanism must be selected to ensure the functioning of machines and components. A distinction is made between three groups:
These use elastic components to compensate for relaxation and creep phenomena. As a result, a portion of the pre-tensioning force can be retained and the connection holds fast.
These increase the friction on the screw bolt using chemical or mechanical clamping mechanisms. The increased torque prevents full loosening of the connection. At the same time, loss of pre-tensioning force can be kept to a minimum.
By causing the partner threads to lock mechanically or adhere to one another, these are able to maintain at least 80% of the previously applied pre-tensioning force, even when subject to high dynamic loads. This is essential to keep a component in operation in safety-relevant applications.