TenScon – Bolt Tensioning Innovation

Being one of the main causes of infrastructure warranty claims, ensuring correct bolt tensioning is essential as over tightening can lead to the premature fatigue and breakdown of joints.

Unfortunately, current tensioning methods rely primarily on operator skill and hence have a large margin of error.

Using our TenScon washer removes ambiguity, improves the quality of the bolt tension process and can dramatically improve infrastructure reliability and safety while reducing operational costs.


TenScon washers are factory engineered to accept predetermined loads and have a moving lever located on their outer diameter. Should a sub-optimal load be applied to a bolt, then the lever will move freely and will only lock in place when the bolt has been correctly tensioned.


  • A highly cost effective and efficient bolt tensioning solution
  • Works with a wide range of industry standard bolts or fasteners
  • Easily installed and reusable
  • Reduces maintenance costs and inspection times as TenScon be used with any tightening tool
  • Improved infrastructure safety as the system provides the highest tension load accuracy (Accurate to +/- 5% of tensioning load)