Bolt Load Sensors

The bolting industry spends millions every year on complex tools needed to ensure bolt tightness as well as very high maintenance costs to periodically check and monitor bolt tightness. Methode has developed a smart washer that can be used to ensure bolt tightness during the tightening operation, as well as periodically over the bolt’s lifetime. As the washer itself measures load, a simple readout tool can be placed at the washer at any time to very quickly and easily monitor the load.

  • Magnetic signature is applied to washer and remains throughout the lieftime of the washer.
  • Highly sensitive flux gates in the read out tool measure change in magnetic fields induced by compression in the washer.
  • Signal output analogue or digital