Hot Dipped and Mechanically Galvanized Fasteners

Why won’t your Direct Tension Indicator (DTI) bumps flatten when using galvanized fasteners? In this hands-on bolting clinic, Chris from Applied Bolting Technology™ breaks down one of the most common — and costly — job site issues: problems caused by galvanized bolt coatings. This video explains: Why galvanized fasteners can be harder to tension How white rust and friction impact bolt preload The critical differences between hot-dip galvanized and mechanically galvanized bolts Why mixing galvanizing types can lead to stripped threads, binding, or failed inspections How to visually identify galvanizing types by color, finish, and nut coatings Best practices for lubrication, storage, and job site verification You’ll also see real-world demonstrations showing what happens when fasteners are mixed incorrectly, and how Squirter® DTIs provide clear, Visual Verification of Bolt Tension™. Whether you’re an ironworker, inspector, engineer, or project manager, this video will help you avoid installation errors, improve inspection confidence, and ensure your bolted connections meet specification the first time. Learn more about Squirter® DTIs and bolting best practices at www.appliedbolting.com #StructuralBolting #SquirterDTI #JobSiteSafety