Rustic Square Head Lag Screws with Ruspert coating that provides 2X the corrosion protection of standard galvanized finishes. Square lag screws are an antique style lag bolt that are difficult to find at standard hardware stores. We offer one of the only square lag bolts available that are coated for exterior use. It is not only a decorative bolt, but can be used to replace standard lag screws. It pairs perfectly with black accents and wrought iron finishes. Perfect for outdoor projects like decks, gazebos, and trusses, where you want to have a unique rustic fastener. Requires a pre-drilled pilot hole for installation. Installs with an 8 point socket or wrench.