Rockwell, Vickers, and Brinell all attempt to determine a material’s susceptibility to indentation or deformation when a force presses on its surface.

Hence, manufacturers utilize them to evaluate the hardness of materials, including custom fasteners, to try to assess their strength and durability.

Although they share the same goals, there are significant differences in techniques and common applications.

Learn more here about the three hardness standards and how to apply the appropriate one to your fastener manufacturing.