Core Hardness and Surface Hardness in Fasteners
The hardness of steel is a measure of the steel's ability to resist deformation, such as abrasion and indentation, when a load is applied to the material. In this article, we will look at hardness [...]
The Difference Between ISO and IATF Certifications
If you poke around a few industrial websites, you'll begin to notice plenty of references to ISO 9001 certification. If you happen to be on an automotive supplier website, you may notice a reference to [...]
What is Torque-Tension Testing?
Torque-tension testing is an aid to fastener and process engineers in developing installation torque specifications for industrial assembly operations. Fastener manufacturers also use these tests in product development. Torque-tension tests are used for free-spinning as [...]
Metric Threads – Threads Part 3
In Part 1 of our Threads Series, we provided some terminology and explained some of the nomenclature of Unified Inch Series threads. In Part 2, we talked about the difference between 2A and 3A threads, [...]
The Difference Between 2A and 3A Threads – Threads Part 2
In Part 1 of our Threads Series, we provided some terminology and explained some of the nomenclature of unified inch series threads. Now, in Part 2, we're going to be talking about the difference [...]
The Basics of External Threads – Threads Part 1
Threads are quite amazing when you stop to think about it. Yeah I know, nobody ever stops to think about threads. But consider this: a properly made bolt subject to extreme tensile stress will break [...]