WJB SPK250 Wheel Hub Bolt Patterns / Number of Bolts: 5; Hub Center Bore Diameter: 1.655; Hub Diameter: 5.701 inch OE Manufacturer: BMW Precision Engineered; Easy installation and Maintenance; Grade 8 Bolts This premium quality replacement part provide an cost effective solution instead of expensive dealer direct parts Fits like OEM - Fitment and function are ensured by rigorous testing, measurement, inspection of material and components.