A new evolution in bolt security.
Nord-Lock added a new dimension of safety to bolt security with the launch of its X-series washer, X-series combines Nord-Lock's wedge-locking protection against spontaneous bolt loosening (due to vibration and dynamic loads) with an exclusive spring effect that protects against slackening due to settlement and relaxation. This combination makes the X-series a multifunctional solution--offering high security for critical joints, without compromise.
Each washer pair has cams on one side and radial teeth on the opposite side to secure the bolted joint with tension instead of friction. The Nord-Lock X-series washers' conical shape also creates an elastic reserve in the bolted joint to compensate for the loss of preload and prevent slackening. www.nord-lock.com/x-series-video