The smooth domed head and square neck below prevent the carriage bolt from being unlocked from the insecure side. A Galvanized coating is the process of applying a protective layer of zinc that prevents rusting.
These bolts are coated by the hot dip galvanizing process, in which they are dipped into a bath of molten zinc. These fasteners are a great choice for use with pressure treated wood or any application that is exposed to elements that may cause corrosion. Quantity of Fasteners in Package : 250. Square Neck Width : 0.390.Square Neck Height : 0.219. Threads Per Inch (TPI) : 16. Coarse or Fine Thread : Coarse. Tracking is provided on ALL Orders. UPS Next Day Air is available, Please inquire for pricing. For YOU, we constantly strive to find ways of improving our performance.