Carriage Bolt Kit: This comprehensive kit includes 12 high-quality carriage bolts, 12 USS thick washers, and 12 hex nuts, along with a robust 1/2" diameter x 12" long auger drill bit featuring a 3/8" hex shank. This all-in-one solution is designed to meet a variety of fastening needs. Constructed from durable and corrosion-resistant materials, this carriage bolt kit is engineered to securely fasten wood members to both wood and metal surfaces. Ideal for a range of applications, this kit is perfect for projects requiring reliable and long-lasting connections. The Carriage Bolt Kit is especially suitable for constructing decks, pergolas, and gazebos, as well as for heavy-duty applications. With a thread size of 1/2"-13, this kit provides the strength and stability needed for outdoor structures. The included auger drill bit excels at drilling into both soft and hardwood materials, including lumber, railroad ties, and landscape timber. It is capable of creating holes up to 10 inches deep, making it an essential tool for various installations, such as invisible floating shelf brackets. Should you encounter any quality issues with our Carriage Bolt Kit, please feel free to reach out to us for assistance. We are committed to ensuring your satisfaction with our products.