We are a manufacturer and supplier of 5.5 mm Self Drilling Rock Bolts. Our rock bolts are designed to provide superior performance in a variety of industrial applications. Made from high-quality steel, our rock bolts are strong and durable to ensure long-term reliability. The bolts are 5.5 mm in size and come in a variety of sizes to suit your specific needs. The silver color of the bolts adds a professional and modern look to any application. Our rock bolts are designed to be used in construction and industrial applications. They can be used to secure walls, foundation, and other structures. The bolts are self-drilling, so they can be quickly and easily installed without the need for additional tools. The bolts are designed to provide a secure and reliable connection to ensure the safety of your construction projects. Our 5.5 mm Self Drilling Rock Bolts are the perfect choice for any industrial or construction project. With their high-quality construction and reliable performance, these bolts are sure to provide you with a secure and long-lasting connection.