Threaded Fastening Systems per NASA-STD-5020 Training

Commitment 3 days, 7-8 hours a day.
Language English
User Ratings Average User Rating 4.8 See what learners said
Delivery Options Instructor-Led Onsite, Online, and Classroom Live


Just about everyone involved in developing hardware for space missions (or any other purpose, for that matter) has been affected by problems with mechanical joints. Common problems include structural failure, fatigue, unwanted and unpredicted loss of stiffness, joint slipping or loss of alignment, fastener loosening, material mismatch, incompatibility with the space environment, mis-drilled holes, time-consuming and costly assembly, and inability to disassemble when needed. The objectives of Threaded Fastening Systems per NASA-STD-5020 Training are to

  • Build an understanding of how bolted joints behave and how they fail
  • Impart effective processes, methods, and standards for design and analysis, drawing on a mix of theory, empirical data, and practical experience
  • Share guidelines, rules of thumb, and valuable references
  • Help you understand the new NASA-STD-5020
  • 3 days of Threaded Fastening Systems per NASA-STD-5020 Training with an expert instructor
  • Threaded Fastening Systems per NASA-STD-5020 Electronic Course Guide
  • Certificate of Completion
  • 100% Satisfaction Guarantee


  • We can adapt this Threaded Fastening Systems per the NASA-STD-5020 course to your group’s background and work requirements at little to no added cost.
  • If you are familiar with some aspects of this Threaded Fastening Systems per NASA-STD-5020 course, we can omit or shorten their discussion.
  • We can adjust the emphasis placed on the various topics or build the Threaded Fastening Systems per NASA-STD-5020 around the mix of technologies of interest to you (including technologies other than those included in this outline).
  • If your background is nontechnical, we can exclude the more technical topics, include the topics that may be of special interest to you (e.g., as a manager or policy-maker), and present the Threaded Fastening Systems per NASA-STD-5020 course in a manner understandable to lay audiences.

Upon completing this Threaded Fastening Systems per NASA-STD-5020 Training course, learners will be able to meet these objectives:


The target audience for this Threaded Fastening Systems per NASA-STD-5020 course:

  • Mechanical design engineers, structural analysts, and others interested in or involved with bolted joints.

The knowledge and skills that a learner must have before attending this  Threaded Fastening Systems per NASA-STD-5020 course are:

  • N/A


  1. Overview of Designing Fastened Joints
    • Common problems with structural joints
    • A process for designing a structural joint
    • Identifying functional requirements
    • Selecting the method of attachment
    • General design guidelines
    • Introduction to NASA-STD-5020
    • Key definitions per NASA-STD-5020
    • Top-level requirements
    • Factors of safety, fitting factors, and margin of safety
    • Establishing design standards and criteria
    • The importance of preload
  2. Introduction to Threaded Fasteners
    • A brief history of screw threads
    • Terminology and specification
    • Tensile-stress area
    • Are fine threads better than coarse threads?
  3. Developing a Concept for the Joint
    • General types of joints and fasteners
    • Configuring the joint
    • Designing a stiff joint
    • Shear clips and tension clips
    • Avoiding problems with fixed fasteners
  4. Calculating Fastener Loads
    • How a preloaded joint carries the load
    • Temporarily ignoring preload
    • Other common assumptions and their limitations
    • An effective process for calculating bolt loads in a compact joint
    • Examples
    • Estimating fastener loads for skins and panels
  5. Failure Modes, Assessment Methods, and Design Guidelines
    • An effective process for strength analysis
    • Bolt tension, shear, and interaction
    • Tension joints
    • Shear joints
    • Identifying potential failure modes
    • Fastening composite materials
  6. Thread Shear and Pull-out Strength
    • How threads fail
    • Computing theoretical shear engagement areas
    • Including a knock-down factor
    • Test results
  7. Selecting Hardware and Detailing the Design
    • Selecting compatible materials
    • Selecting the nut: ensuring strength compatibility
    • Common types of threaded inserts
    • Use of washers
    • Selecting fastener length and grip
    • Recommended fastener hole sizes
    • Guidelines for simplifying assembly
    • Establishing bolt preload
    • Torque-preload relationships
    • Locking features and NASA-STD-5020
    • Recommendations for establishing and maintaining preload
  8. Mechanics of a Preloaded Joint
    • Mechanics of a preloaded joint under applied tension
    • Estimating bolt stiffness and clamp stiffness
    • Understanding the loading-plane factor
    • Worst case for steel-aluminum combination
    • Key conclusions regarding load sharing
    • Effects of bolt ductility
    • How temperature change affects preload
  9. Analysis Criteria in NASA-STD-5020
    • Objectives and summary
    • Calculating maximum and minimum preload
    • Tensile loading: ultimate-strength analysis
    • Separation analysis
    • Tensile loading: yield-strength analysis
    • Shear loading: ultimate-strength analysis
    • Shear loading: ultimate-strength analysis
    • Shear loading: joint-slip analysis
    • Revisiting the bolt fatigue and fracture requirement
Threaded Fastening Systems per NASA-STD-5020 TrainingThreaded Fastening Systems per NASA-STD-5020 Training Course Wrap-Up