The integrity of large bolted rotating couplings can only be guaranteed when the bolts installed meet the operational demands of the coupling. The fundamental requirements are for the bolt to transmit high levels of torque from one shaft to another via the coupling. The bolts must also eliminate any forms of slippage, maintaining the coupling position, alignment and concentricity whilst in service. Today the requirements of a coupling bolt go beyond the fundamentals.

The HYCOBOLT is the most advanced hydraulic coupling bolt delivering high performance torque transmission for critical high load rotating shafts and couplings.

The HYCOBOLT hydraulic coupling bolt offers a significant return on capital investment through time saving, predictable controlled workflow scheduling and maximisation of plant availability.


HYCOBOLT is a trading division of TensionPro, the UK-based bolt tensioner experts. The company is expanding quickly through its global distribution network, serving a worldwide customer base.

The HYCOBOLT hydraulic coupling bolt is just one of a range of products TensionPro supplies to the power generation, wind, industrial, civil, marine, oil and gas markets.

The company offers a one-stop shop for all bolt tensioning requirements covering equipment sales, repairs and refurbishment, spares, special tool designs, load calculations and new tensioner advice.

You can find out more about TensionPro's products, services and markets on the company's main website.