Ferrule-Lock Company Profile

Ferrule-Lock is a versatile three-piece locknut system with greater holding power in high-vibration applications. It boasts a patented design innovation that is (1) easy to install and (2) outperforms other fasteners in the Junker Vibration test.

Ferrule-Lock combines the best features of a jam nut and a tube fitting. Features machined in the face of the nuts act as a crimping force to a ferrule that is slid between them. Simply torque the first nut to the recommended clamp load, install a ferrule, then torque the second nut face to face with the first.

The result is an enclosed ferrule that crimps around the threads of the bolt preventing the nuts from vibrating loose.

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