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B&Q£17.07Visit shop B&Q - Class 10 Stover Locking Nuts Din 980V BzpM10 X 1.50Q10980V001000000270
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The Unifix Class 10 Stover Locking Nuts DIN 980V are precision-engineered fasteners designed for professionals and hobbyists working on high-stress automotive, construction, and machinery projects. These nuts feature a robust Stover locking mechanism that resists loosening caused by vibration, ensuring critical assemblies remain securely fastened over time. While they offer exceptional durability due to their Class 10 strength rating, users should note they are specifically sized for standard M10 bolts and require careful initial torque application to engage the locking feature effectively.
| Colour | Silver |
|---|---|
| Model Part Number | Q10980V001000000270 |
| Brand | Unifix |
Class 10 denotes the strength grade of the steel, indicating it is high-tensile and suitable for demanding, high-stress mechanical applications.
While technically possible, Stover locking nuts rely on thread deformation for locking. Reusability diminishes over time, and it is recommended to replace them if the locking force feels significantly reduced.
These nuts are designed for use with standard M10 bolts.
No, standard metric wrenches or sockets of the appropriate size will work, though the installation will require more torque due to the locking mechanism.
The silver finish provides basic protection against oxidation, though they are primarily intended for mechanical fastening rather than exposure to extreme corrosive environments.
Verify the bolt size is exactly M10. The Stover mechanism intentionally creates resistance, but ensure the threads are clean and free of debris.
Ensure the bolt is long enough for the nut to fully pass the locking threads at the top of the nut.
To install, thread the nut onto the M10 bolt by hand until it reaches the locking portion, then use a wrench or socket to drive it home. Because of the built-in locking mechanism, you will feel increased resistance as you tighten; this is normal and indicates the fastener is engaging correctly. These nuts are designed for M10 bolts with matching thread pitches. While they are resilient, keep them free of heavy grit or debris before installation to avoid cross-threading. If the nuts are exposed to harsh outdoor elements, a light application of lubricant can help maintain the protective finish.
