Bolt Science Training 2017

Matrix Engineering Consultants proudly presents 2-Day Training Course on Bolted Joints for Engineers and Designers

Bolt Science

When: March 13th & 14th, 2018
Where: 12986 Valley View Road, Eden Prairie, MN 55344

  • Matrix Engineering Consultants is an approved provider of Bolt Science© Training
  • Training course will be interactive lecture based.
  • Each student will be provided with a handbook which contains background information to the material presented in the course.
  • Following presentation of the background theory, problems will be presented relating to the topic.
  • Lunch and snacks will be included.

Class Content

Tuesday, March 13th


  • Introduction to Fastener Threads & Fasteners
  • Fastener Manufacturing Overview
  • Introduction to Strength of Threaded Fasteners
  • Overview of Fastener Failure Modes
  • Fatigue Failure of Threaded Fasteners
  • Case Studies: Fatigue Failure
  • Excessive Bearing Stress
  • Stripping and Shearing of Threads
  • Galling of Threaded Fasteners
  • Hydrogen Embrittlement of Bolts
  • Case Studies: Hydrogen Embrittlement
  • Why Tighten Bolts?
  • Overview of Joint Diagrams and Load Factors
  • Methods for Tightening Bolts/Studs
  • Torque Tightening of Bolts
  • Demonstration: Torque Tightening using Skidmore
  • Demonstration: Torque and Angle Tightening using Skidmore
  • Demonstration: Excessive Bearing Stress

Wednesday, March 14th


  • Review of Day 1 Material
  • In Class Problem: Torque Tightening
  • Torque Tightening of Countersunk Screws
  • Case Study: Wheel Detachments
  • Tightening Procedures for Bolt Patterns
  • Quality Assurance/Control of Fastener Assembly
  • Self Loosening of Fasteners
  • Bolts Loaded in Direct Shear
  • Estimating Preload Requirement to Carry Shear Loads in Eccentric Shear Joints
  • Estimating Minimum Preload Requirements in Joints Loaded by Combined Axial, Moment and Shear Loads
  • Overview of FEA Methods to Determine Bolt Reactions
  • Preload Loss Due to Embedment
  • Fasteners Used at Low or Elevated Temperatures
  • Introduction of VDI 2230 Standard - Part 1
  • Bolt Preload Requirements Charts - Easily Understood Method to Determine Requirements
  • Case Studies: Rail Accidents
  • Fastener Finishes and Corrosion

(Some discussions on certain topics will be potentially limited due to class interactions and time constraints.)

Course Instructor

The training course will be presented by Jon Ness, PE.  Jon has over 28 years of engineering and design experience related to the development of mobile equipment components and sub-systems including dynamically loaded bolted joints.  His work has included the design of multiple gear boxes, powertrain systems, engine installations, and the development of test and validation plan strategies.   He has taught numerous classes related to Failure Modes and Effects Analysis and Bolted Joint Design for design engineers.

The course represents 14 Professional Development Hours (PDH).

If there are additional topics you would like us to address during the course please feel free to ask us ahead of time via email to


$1250/student registration on or before 2/18/18

$1500/student registration after 2/18/18

Want to learn more and discuss your project?

We are happy to talk. Contact us today.

Contact Matrix