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    Grower Reaction® washer is part of a fastening system that provides a fully concentric dispersion of the reaction torque around and underneath the nut or bolt head to be tightened or loosened, avoiding the need of a reaction arm to generate the desired bolt preload.


    Grower Detecto® is a smart sensorized washer for bolt monitoring, made of a smart sensor embedded in the washer. This system allows a live detection of the bolt loosening through an Electrical Mechanical Impedance method.


    *The images used on our website are for reference only. These images have the sole purpose to represent the concept of Grower Reaction washers and do not reflect the real configuration of the product, its features and specifications.