This set of carriage bolts is crafted from hot-dipped galvanized steel, ensuring exceptional durability and resistance to corrosion, making them ideal for outdoor construction projects. Each bolt measures 3/8 inch in diameter and 5-1/2 inches in length, providing a robust solution for securing heavy materials. The pack of 50 bolts offers ample supply for large-scale projects, ensuring you have reliable fasteners readily available for any task.