Genuine OEM Volkswagen Hex Collared Bolt, part number N10664503. This bolt features a hexagonal head and a collar, designed for securely fastening various components within the engine and fuel system assemblies. It is a critical fastener for maintaining the integrity of these systems. The precise dimensions and material composition ensure a reliable and durable connection. Genuine OEM bolts provide exact fitment and factory-grade durability, essential for critical engine and fuel system applications.