HLN (Hard Lock Nut) / HLB (Hard Lock Bearing Nut)
It has a strong anti-loosening effect that is not found in other lock nuts, as well as excellent workability and ease of attachment and detachment.
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basic information
Hard Rock Nut: Born in Japan, Growing Worldwide Could the principle of a wedge be applied to prevent loosening? This theme was tackled, and after repeated trial and error, the Hard Rock Nut was completed. The inherent locking energy within it maintains a completely tightened state, unaffected by external vibrations or shocks. Currently, it continues to support safety as a fastening nut in various places such as railways, highways, bridges, skyscrapers, various industrial machinery, and public facilities. Its strong anti-loosening effect, excellent workability, ease of attachment and detachment, and maintenance-free economic benefits provided to users are reflected in its high trust and track record. Born from the pursuit of safety, the Hard Rock Nut will continue to demonstrate its power in unseen places, widely protecting the safety of society. □ For other functions and details, please download the catalog.
Price information
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Delivery Time
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Applications/Examples of results
[Applications] Railways, highways, bridges, skyscrapers, various industrial machinery, public facilities, etc.
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Company information
Hard Rock Industries is a company that develops, produces, and sells "locking nuts," and it was established in 1974. Our Hard Rock Nuts were created from the strong desire of our founder and technical president, Katsuhiko Wakabayashi, to eliminate accidents caused by loosening screws and to create a safe and secure society. We are still advancing the development and improvement of new anti-loosening products. Our products are used in critical safety locations and areas where maintenance and inspection are challenging. <Main Clients> Railway market (vehicles, tracks, overhead lines, etc.), bridges and highways, transmission towers, construction and civil engineering, plant equipment, industrial machinery, etc.
![[Technical Information] Basic Knowledge of Understanding Looseness: What is Torque and Axial Force Management?](https://image.mono.ipros.com/public/product/image/623/2000562733/IPROS10111383357075710493.png?w=280&h=280)
![[Technical Information] Principle of Inclined Plane (in the case of a screw)](https://image.mono.ipros.com/public/product/image/229/2000562767/IPROS88952525681500851930.png?w=280&h=280)
