JISHUO | GB30 Standard 4.8 Grade Hex Bolt

4.8 Grade Steel Material Crafted from 4.8 grade steel, these bolts offer superior strength and durability, perfect for heavy-duty applications. Colorful Surface Treatment The bolts feature a colorful surface treatment, adding a professional touch to your projects while protecting against corrosion. GB30 National Standard Compliance These hex head bolts adhere to the GB30 national standard, ensuring high-quality construction and reliability. Versatile Size Range Available in sizes M6 to M20, these bolts provide a versatile solution for various fixing needs. Hex Head Design The hex head design allows for easy use with hex keys, enhancing convenience and efficiency during installation.