Anchor bolts that are galvanized provide excellent resistance to corrosion as well as long term structural integrity in humid or coastal climates and any exterior applications. The galvanizing process for anchor bolts involves total immersion of the anchor bolts into cleaning solutions to remove any dirt, oil or contaminants that would not allow the molten zinc. The anchor bolts are then immersed in molten zinc according to ASTM A153 which is often referred to as “hot dipped galvanizing.”
All interior surfaces of the nuts as well as the exterior surfaces of the anchor bolts are coated. This includes the inside threads of nuts and the threads on anchor bolts, since corrosion tends to occur on the inside threads of nuts where there can be increased humidity and condensation can occur. Galvanized anchorbolts with no protection on the threads are more likely to corrode. Corroded anchor bolts can lead to concerns of the integrity of the structural connection.Galvanized anchor bolts provide excellent, long-term protection from corrosion and have proven to be an excellent choice for humid, coastal or exterior projects.