ITH connects

ITH Bolting Technology celebrated their 40th anniversary with more than 600 guests and more than 50 international business partners.

NEW: ADS Digital with ADS Smart Control

World's first battery torque wrench up to 6,000 Nm with external data control

Tension & Torque tools

from M 16 (3/8'') and up
150 Nm – 130,000 Nm
88 kN – 50,000 kN

Maintenance free bolting

With IHF fasteners and ITH bolt tensioning cylinders - for steel construction or wind turbines

3rd Bolt Connection Conference exceeds expectations

More than 180 international participants gained knowledge in research & development

NEW: Hydraulic torque wrench type D-Flex

- Flexible cassette type tool
- Low profile, reduced radiuses
- Power classes  280  Nm  -  40.000 Nm

ITH Bolt Tensioning Cylinders overview

Hydraulic, friction- and torsion free tensioning with the ITH Stretch-Method - Fundamental and special designs, accessories.

Electric Nut Runner EDS digital

100 Nm - 13.000 Nm
Easy application management via digital display

ITH connects
NEW: ADS Digital with ADS Smart Control
Tension & Torque tools
Maintenance free bolting
3rd Bolt Connection Conference exceeds expectations
NEW: Hydraulic torque wrench type D-Flex
Bosphorus suspension bridges tightened precisely
ITH Bolt Tensioning Cylinders overview
Electric Nut Runner EDS digital

Hydraulic bolt tensioning tools and torque wrenches to tighten and loosen bolted joints

Hydraulic, friction-free and torsion-free bolt tensioning: The ITH Stretch-Method explained in 49 seconds

New video of ITH Battery Torque Wrench "ADS Digital" up to 6,000 Nm: How to use the ITH Smart Control and set up torque and torque angle


Welcome to ITH Bolting Technology!


ITH is the worldwide leading system supplier in bolting technology

ITH Bolting Technology is a developer, producer and distributor of hydraulic bolt tensioning tools and  torque wrenches for tightening and loosening bolt connections from M 16 (3/8'') and up. The bolting tool portfolio contains:

  • Hydraulic   bolt tensioning cylinders (hydraulic bolt tensioners)
  • Hydraulic torque wrenches 
  • Electric, battery-run and pneumatic torque wrenches (ITH Nut Runner series) 
  • Electric, battery-run and pneumatic high pressure pumps
  • And more bolting solutions

The bolting tool portfolio also covers relating hydraulic equipment, digital testing and documentation systems and numerous customer specific bolting solutions. 

Being a whole system supplier ITH also offers leading capabilities in engineering, standard and special fasteners and wide-range bolting tool services

Browse our website to get a general idea and if you require advice regarding your bolt connection, contact us for a free technical consultation. The consultation can be supported by an on-site inspection.

Offering all leading tightening techniques such as

  • Hydraulic, torsion- and friction-free tensioning
  • Torqueing method
  • Torque-angle method

we are able to advise you competently and objectively. We'll find the best technical solution which leads to your economic benefit.


ITH solutions for bolted joints in all industrial areas and applications