Hydraulically fitted coupling bolts that replace traditional coupling bolts — eliminating installation problems and ensuring precise concentricity.

Riverhawk's Radial Fit Bolt (Hydraulically Fitted Coupling Bolt) consists of a tapered bolt with a tapered sleeve and two cylindrical nuts. It is designed to replace standard coupling bolts and reduce the installation and operational problems created by the use of traditional style coupling bolts.
The Radial Fit Bolt completely fills the bolt hole, eliminating slippage and pinching due to poor fit. Hydraulically assisted removal is available when needed. The replaceable outer sleeves reduce maintenance costs over time, and stronger materials eliminate sleeve imprint and provide greater load carry capacity.
Watch a live demonstration of our Radial Fit Bolt.
Our engineers are available to assist with product selection, sizing, and custom configurations.