Radial Fit Bolt


The Pilgrim Radial Fit Bolt consists of a tapered body, a matching tapered bored sleeve and two round nuts.  Pilgrim’s Radial Fit Bolts are a long term investment as they are re-usable, reduce maintenance down times and are a direct retrofit replacement for conventional bolts.

Specially designed to suit specific coupling geometry, the Pilgrim Radial Fit Bolt offers operators a number of significant benefits.  As they are installed and removed faster than conventional bolts, less time is required to split and re-build couplings, reducing greatly down time and costs, ensuring improved return on investment (ROI) of the asset.

Due to their precise and repeatable location, the bolts can potentially reduce the coupling  vibration and coupling slippage, issues often associated with conventional systems. The problem of bolt seizure and surface pick-up are avoided, concentricity is established and maintained even under extreme operating conditions.  Once fitted there is no need for re-machining.


  • An innovative alternative to conventional fitted bolts
  • Faster and easier to install and remove
  • No more costly outage delays caused by bolts getting stuck in-situ
  • Reduced turbine vibration
  • Coupling slippage eliminated
  • Significantly lower life cycle costs
  • Reusable
  • Direct retrofit
  • Reliability means more effective planning
  • No re-machining
  • Concentricity easily re-established
  • OEM approved
  • Safe and reliable
Radial Fit Bolt (Power)
Typical Radial Fit Bolt (power)
Radial Fit Bolt (Marine)
Typical Radial Fit Bolt (Marine)