Nord-Lock's X-series washer provides improved bolt security

Nord-Lock's X-series washer is designed to combine Nord-Lock’s wedge-locking protection against spontaneous bolt loosening (due to vibration and dynamic loads) with a spring effect that protects against slackening due to settlement and relaxation.

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.

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