Genuine OEM Volkswagen Nut With Washer, part number WHT011269. This fastener combines a nut and an integrated washer to provide a secure and load-distributing connection. It is used in the fuel pump assembly. The integrated washer helps to spread the load over a larger surface area, preventing damage to the mating component. Genuine OEM nuts with washers are manufactured to precise specifications to ensure proper torque and clamping force, vital for the reliability of the fuel system.