Tim Pinchback 
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 well as locking products. This post will discuss basic tests for free-spinning applications. Basics of the Bolted Joint Before … Read more
The hardness of steel is a measure of the steel鈥檚 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 for externally threaded聽screws, bolts, and studs made from alloy or carbon steel. Most fastener standards and specifications have two mechanical … Read more
Surface finishes are often applied to plain steel fasteners in order to improve performance. When it comes to steel bolts and screws, there are dozens of different coatings and platings to choose from, each with different properties and costs. For the purposes of this article, we鈥檒l present a basic introduction to five types of finishes … Read more
When it comes to screws, bolts, and other threaded fasteners, precision and accuracy are critical. Engineers and manufacturers rely on standardized measurements and classifications to ensure seamless assembly and optimal performance. In Part 1 of our Threads Series, we provided some terminology and explained some of the nomenclatures of Unified Inch series threads. Now, we鈥檒l … Read more