Genuine OEM Volkswagen Hexagon Bolt, part number WHT011266. This fastener features a hexagonal head and is used to join or secure components, specifically in this application, the brake caliper assembly. It is located on the brake caliper. The bolt is typically made of high-strength steel to withstand braking forces. Genuine OEM bolts ensure correct thread pitch and material strength, crucial for the safety and performance of the braking system.