ITH GmbH & Co. KG

We are the worldwide leading system supplier for bolted joints bigger than M16 (5/8‘‘)

ITH Bolting Technology is hidden champion for tension and torque tools to tighten and loosen industrial bolt connections bigger than M16 (5/8”). As a worldwide leading system supplier, the ITH Group combines industrial bolting tools from ITH, high-strength fasteners from IHF and systems for measuring assembly preload. This is complemented by expertise in engineering and qualified service. The global footprint creates technically and economically best solutions for our business partners in over 16 industries on five continents.

As a private-owned engineering company with a long-term business strategy, the global ITH-network includes 12 ITH- subsidiaries and more than 40 global representations.

Leading innovation
With more than 200 international patents ITH is among the most important drivers of innovation in industrial bolting technology. The ITH scope covers:

  • bolting tools (bolt tensioning cylinders, hydraulic torque wrenches; electric, battery-driven and pneumatic nut runners)
  • fasteners
  • engineering solutions and
  • service.

ITH stretch method (hydraulic torsion-free and friction-free tensioning) was introduced in 1980. Achieving reproducible pre-tensioning forces within a close tolerance of ±2.5% today the ITH Stretch Method is the leading method to tighten and loosen bolted joints on slewing bearings, gas & steam turbines and flange applications.

ITH headquarters in Meschede, Germany is one of the world’s biggest competence centers for development, production, distribution and service of bolting technology.

Global industry leaders from the sectors of power generation, offshore and maritime and general engineering trust the know-how and the reliability of ITH Bolting Technology.

Social engagement
ITH Schraubtechnik supports the areas of education and sport through numerous projects, as we are convinced that these topics contribute to the sustainable positive development of our society.


Bolt tensioning cylinder




World wide: 450+ (ITH Group)



Founded by Hans Hohmann


Start of internationalization – Foundation of ITH Engineering (Chicago, USA) and Rep. Office ITH China (Shanghai)


Leading innovation: Pressure-Stretch-Documentation system for BTCs – Application management, monitoring & digital documentation of tensioning procedures


Development and introduction of the IHF Stretchbolt – ITH developed maintenance free bolted joints for wind turbines and steel constructions


New corporate headquarter “ITH 2016” – Production & office areas have been enlarged, further space for future expansion


Finishing the expansion of the company headquarter in Enste


ITH GmbH & Co. KG
Steinwiese 8

Phone +49 291 99660

World Market Leaders from A-Z