The combined method of pretensioning has been approved in the latest editions of the RCSC Specification for Structural Joints Using High-Strength Bolts and the AISC Specification for Structural Steel Buildings. Learn about the history and concepts behind the new pretensioning method, how it differs from existing practices, and most importantly, how it improves upon them. We’ll take a deep dive into the science of the combined method, demonstrate how it can improve reliability, and how it brings quality and efficiency to bolting. And we’ll peek at what bolting might look like in the next 5 years. Chad Larson, Senior Bolting Officer LeJeune Bolt Company