Nord-Lock created the original wedge-locking technology that secures bolted joints, even when exposed to severe vibration and dynamic loads. It is impossible for our products to loosen unintentionally due to the wedge created underneath the bolt head and nut.


Nord-Lock wedge-locking technology secures bolted joints with tension instead of friction. The system is composed of a pair of lock washers with cams on one side and radial teeth on the other.

Nord-Lock wedge-locking products secure the fastener in a joint which cannot be loosened even when subjected to extreme vibration or dynamic loads. The Nord-Lock range includes steel construction washers, wheel nuts, combi bolt washers and custom solutions.


Bolted joints fail for two reasons – spontaneous bolt loosening and slackening. Nord-Lock multifunctional wedge-locking technology tackles both.

The wedge-effect prevents spontaneous bolt loosening, whilst the spring effect compensates for loss of preload due to slackening – offering you total security for those situations when there can be no compromise.