Wheel Nuts & Bolts, found under Wheels & Rims, are critical fasteners securing wheels to the vehicle's hubs on passenger cars and commercial vehicles. These components ensure safe and reliable wheel attachment, playing a vital role in vehicle stability and driver safety. Typically manufactured from hardened steel alloys, these nuts and bolts are engineered to withstand high torque loads and resist corrosion. Variations exist to suit different wheel types, stud sizes, and vehicle applications; for example, Febi MPN FEBI37549 is a common nut for many European vehicles, while Scania 2285273 is a specific bolt designed for Scania trucks and buses. Correct tightening torque, as specified by the vehicle manufacturer, is essential for safe operation, and using the appropriate replacement parts like Febi MPN FEBI18913 or FEBI04029 is crucial for maintaining this safety.