Bossard Academy

Design and calculation of screw connections according to VDI 2230

23rd September 2026 | Bossard Academy in Zug

A man in a blue shirt works on a technical drawing at a standing desk on a computer

Calculating a bolted joint in full accordance with VDI 2230 is very complex and requires in-depth knowledge of the calculation methodology. In practice, however, there is often neither the time nor the need to perform an analytical calculation in every detail. However, a rough design of bolted joints can be achieved with manageable effort using tables, provided the technical boundary conditions are known.

The goal of this course is to enable you to roughly design all important bolted joint categories and understand the necessary relationships. VDI 2230 provides the basis for this. This seminar day is aimed at engineers and people from design and development.

This specialized seminar builds on the "Safe Bolted Joints" course and requires participation in it. Please bring a calculator or laptop.

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Seminar agenda – your overview of the day’s topics

8:30 - 9:00 a.m.
Arrival & Coffee

9:00 - 10:30 a.m.
Approximate screw design
In this first session, we will cover the following topics:

  • Estimating the thread diameter
  • Selecting the correct tightening torque (influencing factors)
  • Guideline values ​​for friction coefficients
  • Determining the preload force using tables and apps

10:30 - 10:45 a.m.
Coffee break☕

10:45 - 12:30 p.m.
Approximate bolt design (continued)

12:30 - 13:30 p.m.
Lunch break🍝

13:30 - 14:30 p.m.
Calculation parameters VDI 2230

  • Required screw-in depth
  • Assessment of surface pressure
  • Settling losses
  • Durability of bolted connections

14:30 - 14:45 p.m.
Coffee break☕

14:45 - 17:00 p.m.
Calculation parameters VDI 2230 (continued)
We will look in detail at the individual steps required for the calculation of bolted connections according to VDI 2230.

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A group of men stand around a workbench with tools and discuss together.

Your speakers

A man with glasses and a blue suit smiles warmly at the camera.
Dominik Schmid is our expert for screw connections. The more complex the load cases, the more he enjoys taking on the design. After his training as a metalworker and mechanical engineer, he gained experience in steel construction.
A man with glasses and a blue suit smiles warmly at the camera.
Dani Meier is a certified mechanical engineer TS (HF) with over 15 years of experience in the design of systems and elevator systems, effectively contributing to the team.
Jürgen Eixler
Jürgen Eixler
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A man with glasses and a blue suit smiles warmly at the camera.
Dominik Schmid is our expert for screw connections. The more complex the load cases, the more he enjoys taking on the design. After his training as a metalworker and mechanical engineer, he gained experience in steel construction.
  • A man with glasses and a blue suit smiles warmly at the camera.
  • A man with glasses and a blue suit smiles warmly at the camera.
  • Jürgen Eixler

Quality has a name – Impressions from the Bossard Academy

In a classroom, people sit at tables and engage in a group discussion.
Classroom with tables and chairs arranged in front of a window providing light.
A classroom with blue workbenches and white walls, creating a bright and inviting learning environment.
A room with a workbench and tools, representing a productive work environment.
A room with blue chairs and tables that exudes an inviting and modern atmosphere.
A group of people stands around a workbench, using tools and a cordless screwdriver on the workbench.
A man operates a machine to cut a piece of metal.
A person uses a drill to make a hole in a piece of metal.
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In a classroom, people sit at tables and engage in a group discussion.
  • In a classroom, people sit at tables and engage in a group discussion.
  • Classroom with tables and chairs arranged in front of a window providing light.
  • A classroom with blue workbenches and white walls, creating a bright and inviting learning environment.
  • A room with a workbench and tools, representing a productive work environment.
  • A room with blue chairs and tables that exudes an inviting and modern atmosphere.
  • A group of people stands around a workbench, using tools and a cordless screwdriver on the workbench.
  • A man operates a machine to cut a piece of metal.
  • A person uses a drill to make a hole in a piece of metal.

For more than 10 years, the Bossard Academy's specialist seminars have combined the theory and practice of fastening technology. With a holistic, yet always application-oriented approach, we cover all aspects of modern screw connections – from the physical principles and the materials used to their application in development, design, and production in a wide variety of industries.