Testing bolted connectors under vibration conditions by Nord-Lock company. What happens to the bolt?


This information may seem boring to many, but for engineers and designers this video above is more exciting than “Terminator” or such. At least, this is the case with me. On top of pure curiosity I have also professional interest in this information. Designing devices which have bolted connections and some of which have to operate under certain stress, wear-and-tear conditions I can appreciate solutions created by Nord-Lock team.

Nord-Lock washers secure bolted joints with tension instead of friction. It is a high quality product with documented success in many industries worldwide.

Nord-Lock wedge lock washers have been rigorously tested and approved by independent institutes as well as certification authorities. Nord-Lock wedge lock washers are used in numerous industries such as: energy, transportation, offshore, mining and quarrying, construction and bridge building, manufacturing and processing, ship building, forestry and agriculture, heavy vehicles, and military. Our washers are approved by several industry standards and specified by numerous international companies.


Over the operational life cycle, Nord-Lock wedge lock washers give increased operational reliability and lower maintenance costs while significantly reducing the risks of production stops, accidents and warranty claims.

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In 2011 Nord-Lock began to laser mark various sizes of the Nord-Lock washers. Since January 2016 all Nord-Lock washers manufactured are laser marked with the Nord-Lock brand name, control number and a type code for increased traceability and to facilitate authentication. Recommended reading www.nord-lock.com/genuine

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