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One of the benefits of being a member of the American Galvanizers Association (AGA) for galvanizers is free unlimited technical support. The AGA technical staff will answer questions pertaining to the galvanizing process and job-specific problems such as appearance or other issues. Some of the dues AGA members pay goes to the cost of researching technical problems. Because of this, the AGA cannot provide technical support to non-members; however, the AGA website and KnowledgeBase have many free resources available concerning many technical subjects. The AGA website also has a variety of free resources including publications and Dr. Galv articles. The AGA does provide technical support to architects, engineers, inspectors, and fabricators without the requirement of membership in the AGA. Support of this nature tends to fall into the area of concerns after the galvanizing process or about the performance of hot-dip galvanized steel in certain environments.

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Michigan DOT

Can a threaded anchor bolt be HDG if one end is drilled and tapped to receive a retaining bolt? Our designer detailed a 1-3/4" anchor bolt that requires a 1" high strength bolt to be threaded in one end a total of 2-1/2" deep. Our fabricator's galvanizer is stating this can't be done. Is this due to venting this very small cavity? In regards to the excess zinc build-up, the threads could be chased with a tap. thanks, Matt


Hi Matthew, yes, drainage may be an issue for this design -- if this is acceptable to you, it may be possible to come to an agreement with the galvanizer.

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