Hyjoy Square Bolts 5-Pack – 1/2" Diameter, 3-1/16" ID x 4-5/16" Depth, Hot-Dipped Galvanized with Plates & 10 Nuts – For Automobiles, Ski, Sailboats

Product overview: Heavy-duty Hyjoy square bolts engineered for marine and industrial use. Each bolt measures 1/2 inch in diameter with an inside width (ID) of 3-1/16 inches and an internal depth of 4-5/16 inches. Thread length is 2.6 inches—please check the supplied dimension image and confirm the outside diameter (OD) for your application. Construction and durability: Made from hot-dipped galvanized steel, these bolts provide enhanced hardness and protection against rust and corrosion. They are built to withstand harsh environments including salt water, fresh water, and coastal conditions for long-lasting performance. Intended uses: Ideal for securing square beams and shafts such as those found on marine trailers and motor boats. Also suitable for applications involving wood, pipe, tube, plumbing, and a range of industrial tasks. What’s included: One set contains 5 square bolts, 10 nuts, and 5 plates—everything needed for installation. Customer support: If you have any questions or are not satisfied with the product, email us at any time and we will do our best to assist you within 24 hours.