something you didn’t know about #6 screws

Came across this fun fact today… 6-32 screws have the worst ratio of torque that can be applied to torque necessary to shear the screw.

In other words, they are the screws most likely to shear off.

Good to know.

Related posts:

  1. thread-forming vs thread-cutting screws
  2. free body diagrams in product design
  3. robust CAD models

Tagged as: fasteners, screws

Article by chris loughnane

Chris is Design Engineer + Sustainability Advocate at a Boston area design consultancy and has written 127 sweet posts for the Product Development Notebook.

Need a regular fix of product design goodness? Subscribe via RSS or Email to keep up with the latest posts!

The Product Development Notebook runs the Thesis Wordpress Theme.
  • Ejgus73

    …another good article. Yes, my boss taught me long ago, to use either a #4 or #8. There are very few instances when a #6 will be needed. Typically, the few instances I’ve had where I’ve use a #6 is when a #8 is just slightly too big and you gain just enough wall thickness or screw clearance etc, by dropping down to a #6. It might also be easier in this case to use a #4 and just call our a higher strength material….