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3rd Bolt Connection Conference 2019 was appreciated by more than 180 participants.

3rd Bolt Connection Conference 2019 exceeds expectations


ITH Bolting Technology welcomed more than 180 participants from all over the world for the 3rd Bolt Connection Conference in Meschede, Germany. Contact ITH for detailed technical information about the lectures.

Leading innovations and new technical reports  from development and research into bolting technology for sizes M20 (8") and above were presented to more than 180 international technicians and engineers over 2 conference days. 

ITH president Frank Hohmann (on the right) during a technical discussion with Dr. Jürgen Rollmann, one of the well-known speakers of the conference.

Crucial W-questions when using bolting technology

Industry experts are discussing certain crucial W-questions relating to the tightening of a bolted connection:

  • Who tightens a bolted connection 
  • where, 
  • when
  • with what  method and with 
  • what results? 

The measurement, documentation and interpretation of bolting procedures are the current major trends", explains ITH-president Frank Hohmann, who leads the global acting family-business ITH Bolting Technology together with his brother Jörg Hohmann. 

ITH was responsible for organising and delivering the conference.

Smart bolt or smart bolting tool?

When developing bolting solutions two strategies can be applied: "Either you attach intelligent components to the fastener", Frank Hohmann points out. "Or you modify the bolting tool - for example with an intelligent documentation system".


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Combining theory and practice

The participants joined the practical part "hands on tools" on the first day of conference, in order to gain an impression of latest bolting tool developments. At the headquarters of ITH Bolting Technology in Meschede, Germany, twelve bolting tool demonstration stands were prepared and functions and features of the various bolting solutions were shown.

Conference day two was all about the twelve lectures of international and well renowned speakers from all over Europe. The main auditoirum of the University of Applied Sciences Southwestfalia in Meschede provided an appropriate venue. The lecture topics dealt with the complete "process chain in bolting technology":

  1. Design and engineering
  2. Installation (bolting method and hardware)
  3. Quality management 
  4. Maintenance

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Bolt Connection Conference was bilingual for the first time

„The bolting technology scene is international", Jörg Hohmann says. "That is why we made the decision to make it German and English for the first time“. Four out of twelve lectures were held in English. For the other eight presentations a simultaneous translation service was offered via headphones for all international participants.  

One quarter of participants were international, hailing from 

  • USA
  • United Kingdom
  • France
  • Spain
  • Denmark
  • Sweden

and even from Malaysia and Australia to join the conference in Meschede, Germany.


„The conference exceeded my expectations in terms of
content, form and hospitality".
Quote from a participant from the UK


Jörg Hohmann summarizes: „From personal conversations and from the results of our evaluation forms we received a very positive feedback. This can be taken as recognition of our organization and good choice of lectures". 

The 4th Bolt Connection Conference is planned to take place in three or four years.


Further cooperations with University of Applied Sciences

In addition to the Bolt Connection Conference, there are further, productive research and development initiatives between The University of Applied Sciences Southwestphalia and ITH Bolting Technology.

"Local educational and scientific institutions such as The University of Applied Sciences South Westphalia are important to the whole region", Frank Hohmann points out. "These institutions need projects and the industry needs research and development, this is beneficial to both sides. We would like to thank the University of Applied Sciences for good cooperation during the bolting conference and look forward to working together in future".


ITH Bolting Technology organized the  3rd Bolt Connection Conference in cooperation with the University of Applied Sciences South Westphalia in Meschede, Germany.

Die Konferenz findet in den Räumlichkeiten der Fachhochschule Südwestfalen statt.

Renowned speakers and lectures of the 3rd Bolt Connection Conference 2019 (alphabetical)

Thema Referent

Industry 4.0 scenarios (digitalization) – how this applies my company?

Prof. Dr.-Ing. Jürgen Bechtloff
University of Applied Sciences Southwestphalia, Meschede, Germany

Determination of Pre-Tensioning Force by Means of Ultrasound Methods in Theory, Practice and Research

Dipl.-Ing. Michael Becker
Fraunhofer IZFP, Saarbrücken, Germany

Corrosion resistance of high-strength, large fasteners

Prof. Dr. -Ing. Ralf Feser
University of Applied Science South Westphalia,
Iserlohn, Germany

Experimental evaluation of the fatigue strength of large high-strength bolts

Prof. Dr.-Ing. Ralf Glienke
Fraunhofer Institute, Rostock, Germany

Recent trends in bolting technology / moderation

Dipl.-Ing. Frank Hohmann
ITH Bolting Technolgy, Meschede, Germany

FE analysis software for optimised tightening sequence for ring flanges with inclination

Dr. Jens Krieger und Dipl.-Ing. Jörg Hohmann
ISATEC GmbH, Aachen, Germany  and ITH GmbH & Co. KG, Meschede, Germany

News about VDI 2230 -  draft of part 3

Prof. Dr.-Ing. Willfried Lori
University of Applied Sciences Zwickau (WHZ), Germany, former Chairman of the board of the VDI 2230

Maintenance Reduced Tower Flange Connections (Englisch)

Peter Sigfred Mortensen
MHI Vestas Offshore Wind, Denmark

Experiences in validation of maintenance-free bolted joints for wind turbine structures (English)

Axel Dombrowski and Giovanni Nappi M.Sc.
DNV GL, Kopenhagen, Denmark

Design and stresses of bolt connections at slewing bearings

Dr.-Ing. Jörg Rollmann
thyssenkrupp Rothe Erde GmbH, Lippstadt, Germany

Fatigue resistance of HV-bolts in ring flange connections – Design and present research findings

Andre Stang M.Eng.
Institut für Stahlbau, Leibniz University of Hannover, Germany

Statistical analysis of measurement results - Determination of the tightening factor alpha A according to VDI 2230 part 1 from tightening

Dipl.-Ing. Lutz Winter
Renk AG, Hannover, Germany


Full program download

3rd Bolt Connection Conference program and application

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