Expect simpler assembly, fewer errors, and optimized efficiency with our combi nuts, combining a nut with a pair of captivated Nord-Lock original washers. Combi nuts are ideal when a lack of accessibility in combination with loose parts make assembling and maintenance difficult. The advantages of the combi nut will streamline production for any manufacturer using serial assembly.
⬆️ Video: How the Nord-Lock Combi Nut Works
Each combi nut combines a nut with a pair of captivated Nord-Lock Original washers, with cam faces on one side and serrations on the other, giving rise to the wedge effect.
With movement only occurring across the cam faces, any rotation of the combi nut is blocked by the wedge effect of the cams.
Advantages
Wedge-locking washers utilise tension instead of friction in order to secure bolted joints exposed to severe vibration and dynamic loads.
The Nord-Lock X-series washers combine Nord-Lock wedge-locking with an innovative spring effect, offering the highest security against spontaneous bolt loosening and slackening.
Wedge-locking washers specially designed for steel construction to fit HV/HR sets in accordance to the European standard EN 14399-3/EN 14399-4 /EN 14399-8.
Nord-Lock combi bolt washers are specifically designed to be permanently attached to a bolt (SEMS), providing an additional layer of security to applications.
A tightened Nord-Lock wheel nut cannot loosen by itself. Nord-Lock wheel nuts are used on heavy on-road vehicles, and off-road vehicles
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